diff --git a/Makefile b/Makefile
index 4ba30e620..a83de954a 100644
--- a/Makefile
+++ b/Makefile
@@ -152,9 +152,10 @@ status-backend: ##@build Build status-backend to run status-go as HTTP server
 status-backend: build/bin/status-backend
 
 run-status-backend: PORT ?= 0
+MEDIA_HTTPS ?= true
 run-status-backend: generate
 run-status-backend: ##@run Start status-backend server listening to localhost:PORT
-	go run ./cmd/status-backend --address localhost:${PORT}
+	go run ./cmd/status-backend --address localhost:${PORT} --media-https=${MEDIA_HTTPS}
 
 statusgo-cross: statusgo-android statusgo-ios
 	@echo "Full cross compilation done."
diff --git a/api/app_state.go b/api/app_state.go
index 7807b7705..96c505f9c 100644
--- a/api/app_state.go
+++ b/api/app_state.go
@@ -5,30 +5,39 @@ import (
 	"strings"
 )
 
-// appState represents if the app is in foreground, background or some other state
-type appState string
+// AppState represents if the app is in foreground, background or some other state
+type AppState string
 
-func (a appState) String() string {
+func (a AppState) String() string {
 	return string(a)
 }
 
 // Specific app states
 // see https://facebook.github.io/react-native/docs/appstate.html
 const (
-	appStateForeground = appState("active") // these constant values are kept in sync with React Native
-	appStateBackground = appState("background")
-	appStateInactive   = appState("inactive")
+	AppStateForeground = AppState("active") // these constant values are kept in sync with React Native
+	AppStateBackground = AppState("background")
+	AppStateInactive   = AppState("inactive")
 
-	appStateInvalid = appState("")
+	AppStateInvalid = AppState("")
 )
 
 // validAppStates returns an immutable set of valid states.
-func validAppStates() []appState {
-	return []appState{appStateInactive, appStateBackground, appStateForeground}
+func validAppStates() []AppState {
+	return []AppState{AppStateInactive, AppStateBackground, AppStateForeground}
 }
 
-// parseAppState creates AppState from a string
-func parseAppState(stateString string) (appState, error) {
+func (a AppState) IsValid() bool {
+	for _, state := range validAppStates() {
+		if a == state {
+			return true
+		}
+	}
+	return false
+}
+
+// ParseAppState creates AppState from a string
+func ParseAppState(stateString string) (AppState, error) {
 	// a bit of cleaning up
 	stateString = strings.ToLower(strings.TrimSpace(stateString))
 
@@ -38,5 +47,5 @@ func parseAppState(stateString string) (appState, error) {
 		}
 	}
 
-	return appStateInvalid, fmt.Errorf("could not parse app state: %s", stateString)
+	return AppStateInvalid, fmt.Errorf("could not parse app state: %s", stateString)
 }
diff --git a/api/app_state_test.go b/api/app_state_test.go
index 307189390..37428ce38 100644
--- a/api/app_state_test.go
+++ b/api/app_state_test.go
@@ -7,22 +7,22 @@ import (
 )
 
 func TestParseAppType(t *testing.T) {
-	check := func(input string, expectedState appState, expectError bool) {
-		actualState, err := parseAppState(input)
+	check := func(input string, expectedState AppState, expectError bool) {
+		actualState, err := ParseAppState(input)
 		assert.Equalf(t, expectedState, actualState, "unexpected result from parseAppState")
 		if expectError {
 			assert.NotNil(t, err, "error should not be nil")
 		}
 	}
 
-	check("active", appStateForeground, false)
-	check("background", appStateBackground, false)
-	check("inactive", appStateInactive, false)
-	check(" acTIVE ", appStateForeground, false)
-	check("    backGROUND  ", appStateBackground, false)
-	check("   INACTIVE   ", appStateInactive, false)
-	check("", appStateInvalid, true)
-	check("back ground", appStateInvalid, true)
-	check(" back ground ", appStateInvalid, true)
-	check("      ", appStateInvalid, true)
+	check("active", AppStateForeground, false)
+	check("background", AppStateBackground, false)
+	check("inactive", AppStateInactive, false)
+	check(" acTIVE ", AppStateForeground, false)
+	check("    backGROUND  ", AppStateBackground, false)
+	check("   INACTIVE   ", AppStateInactive, false)
+	check("", AppStateInvalid, true)
+	check("back ground", AppStateInvalid, true)
+	check(" back ground ", AppStateInvalid, true)
+	check("      ", AppStateInvalid, true)
 }
diff --git a/api/backend.go b/api/backend.go
index 1922feb73..f7dbeaf68 100644
--- a/api/backend.go
+++ b/api/backend.go
@@ -52,7 +52,7 @@ type StatusBackend interface {
 	SignTypedDataV4(typed signercore.TypedData, address string, password string) (types.HexBytes, error)
 
 	ConnectionChange(typ string, expensive bool)
-	AppStateChange(state string)
+	AppStateChange(state AppState)
 
 	ExtractGroupMembershipSignatures(signaturePairs [][2]string) ([]string, error)
 	SignGroupMembership(content string) (string, error)
diff --git a/api/backend_test.go b/api/backend_test.go
index 49f0f05f8..b2ca19a1e 100644
--- a/api/backend_test.go
+++ b/api/backend_test.go
@@ -396,28 +396,28 @@ func TestAppStateChange(t *testing.T) {
 
 	var testCases = []struct {
 		name          string
-		fromState     appState
-		toState       appState
-		expectedState appState
+		fromState     AppState
+		toState       AppState
+		expectedState AppState
 	}{
 		{
 			name:          "success",
-			fromState:     appStateInactive,
-			toState:       appStateBackground,
-			expectedState: appStateBackground,
+			fromState:     AppStateInactive,
+			toState:       AppStateBackground,
+			expectedState: AppStateBackground,
 		},
 		{
 			name:          "invalid state",
-			fromState:     appStateInactive,
+			fromState:     AppStateInvalid,
 			toState:       "unexisting",
-			expectedState: appStateInactive,
+			expectedState: AppStateInvalid,
 		},
 	}
 
 	for _, tc := range testCases {
 		t.Run(tc.name, func(t *testing.T) {
 			backend.appState = tc.fromState
-			backend.AppStateChange(tc.toState.String())
+			backend.AppStateChange(tc.toState)
 			assert.Equal(t, tc.expectedState.String(), backend.appState.String())
 		})
 	}
diff --git a/api/geth_backend.go b/api/geth_backend.go
index 5e983d39f..02e621536 100644
--- a/api/geth_backend.go
+++ b/api/geth_backend.go
@@ -95,7 +95,7 @@ type GethStatusBackend struct {
 	accountManager           *account.GethManager
 	transactor               *transactions.Transactor
 	connectionState          connection.State
-	appState                 appState
+	appState                 AppState
 	selectedAccountKeyID     string
 	allowAllRPC              bool // used only for tests, disables api method restrictions
 	LocalPairingStateManager *statecontrol.ProcessStateManager
@@ -1196,7 +1196,7 @@ func replaceDBFile(dbPath string, newDBPath string) (cleanup func(), err error)
 	return
 }
 
-func (b *GethStatusBackend) ConvertToKeycardAccount(account multiaccounts.Account, s settings.Settings, keycardUID string, password string, newPassword string) error {
+func (b *GethStatusBackend) ConvertToKeycardAccount(account multiaccounts.Account, s settings.Settings, keycardUID string, oldPassword string, newPassword string) error {
 	messenger := b.Messenger()
 	if messenger == nil {
 		return errors.New("cannot resolve messenger instance")
@@ -1207,7 +1207,7 @@ func (b *GethStatusBackend) ConvertToKeycardAccount(account multiaccounts.Accoun
 		return err
 	}
 
-	err = b.ensureDBsOpened(account, password)
+	err = b.ensureDBsOpened(account, oldPassword)
 	if err != nil {
 		return err
 	}
@@ -1300,7 +1300,7 @@ func (b *GethStatusBackend) ConvertToKeycardAccount(account multiaccounts.Accoun
 		return err
 	}
 
-	err = b.ChangeDatabasePassword(account.KeyUID, password, newPassword)
+	err = b.ChangeDatabasePassword(account.KeyUID, oldPassword, newPassword)
 	if err != nil {
 		return err
 	}
@@ -2488,15 +2488,15 @@ func (b *GethStatusBackend) ConnectionChange(typ string, expensive bool) {
 
 // AppStateChange handles app state changes (background/foreground).
 // state values: see https://facebook.github.io/react-native/docs/appstate.html
-func (b *GethStatusBackend) AppStateChange(state string) {
-	var messenger *protocol.Messenger
-	s, err := parseAppState(state)
-	if err != nil {
-		b.logger.Error("AppStateChange failed, ignoring", zap.Error(err))
+func (b *GethStatusBackend) AppStateChange(state AppState) {
+	if !state.IsValid() {
+		b.logger.Warn("invalid app state, not reporting app state change", zap.Any("state", state))
 		return
 	}
 
-	b.appState = s
+	var messenger *protocol.Messenger
+
+	b.appState = state
 
 	if b.statusNode == nil {
 		b.logger.Warn("statusNode nil, not reporting app state change")
@@ -2516,7 +2516,7 @@ func (b *GethStatusBackend) AppStateChange(state string) {
 		return
 	}
 
-	if s == appStateForeground {
+	if state == AppStateForeground {
 		messenger.ToForeground()
 	} else {
 		messenger.ToBackground()
diff --git a/cmd/status-backend/main.go b/cmd/status-backend/main.go
index 763b15c8f..e6ad00d6e 100644
--- a/cmd/status-backend/main.go
+++ b/cmd/status-backend/main.go
@@ -9,14 +9,16 @@ import (
 
 	"github.com/ethereum/go-ethereum/log"
 
-	"github.com/status-im/status-go/cmd/status-backend/server"
+	backendServer "github.com/status-im/status-go/cmd/status-backend/server"
 	"github.com/status-im/status-go/internal/version"
 	"github.com/status-im/status-go/logutils"
+	mediaServer "github.com/status-im/status-go/server"
 )
 
 var (
-	address = flag.String("address", "", "host:port to listen")
-	logger  = log.New("package", "status-go/cmd/status-backend")
+	address       = flag.String("address", "", "host:port to listen")
+	useMediaHTTPS = flag.Bool("media-https", true, "use HTTPS for media server (default: true)")
+	logger        = log.New("package", "status-go/cmd/status-backend")
 )
 
 func init() {
@@ -34,7 +36,9 @@ func init() {
 func main() {
 	flag.Parse()
 
-	srv := server.NewServer()
+	mediaServer.UseHTTP = !*useMediaHTTPS
+
+	srv := backendServer.NewServer()
 	srv.Setup()
 
 	err := srv.Listen(*address)
diff --git a/mobile/callog/status_request_log.go b/mobile/callog/status_request_log.go
index ae2d5f789..8873360bb 100644
--- a/mobile/callog/status_request_log.go
+++ b/mobile/callog/status_request_log.go
@@ -15,6 +15,7 @@ import (
 
 var sensitiveKeys = []string{
 	"password",
+	"newPassword",
 	"mnemonic",
 	"openseaAPIKey",
 	"poktToken",
diff --git a/mobile/requests/app_state_change.go b/mobile/requests/app_state_change.go
new file mode 100644
index 000000000..ae134ab84
--- /dev/null
+++ b/mobile/requests/app_state_change.go
@@ -0,0 +1,39 @@
+package requests
+
+import (
+	"github.com/status-im/status-go/api"
+	"github.com/status-im/status-go/logutils"
+
+	"go.uber.org/zap"
+	"gopkg.in/go-playground/validator.v9"
+)
+
+// AppStateChange represents a request to change the app state from mobile
+type AppStateChange struct {
+	State api.AppState `json:"state" validate:"required,app_state"`
+}
+
+var validate *validator.Validate
+
+func init() {
+	validate = validator.New()
+	err := validate.RegisterValidation("app_state", validateAppState)
+	if err != nil {
+		logutils.ZapLogger().Error("register app state validation failed", zap.Error(err))
+	}
+}
+
+func validateAppState(fl validator.FieldLevel) bool {
+	state := api.AppState(fl.Field().String())
+	switch state {
+	case api.AppStateBackground, api.AppStateForeground, api.AppStateInactive:
+		return true
+	default:
+		return false
+	}
+}
+
+// Validate checks if the request is valid
+func (r *AppStateChange) Validate() error {
+	return validate.Struct(r)
+}
diff --git a/mobile/requests/app_state_change_test.go b/mobile/requests/app_state_change_test.go
new file mode 100644
index 000000000..fa9860eb5
--- /dev/null
+++ b/mobile/requests/app_state_change_test.go
@@ -0,0 +1,35 @@
+package requests
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"github.com/status-im/status-go/api"
+)
+
+func TestAppStateChange(t *testing.T) {
+	t.Run("Valid States", func(t *testing.T) {
+		testCases := []api.AppState{
+			api.AppStateBackground,
+			api.AppStateForeground,
+			api.AppStateInactive,
+		}
+
+		for _, state := range testCases {
+			req := AppStateChange{State: state}
+			err := req.Validate()
+			require.NoError(t, err, "validation should pass for state: %s", state)
+		}
+	})
+
+	t.Run("Invalid State", func(t *testing.T) {
+		invalidStates := []api.AppState{"invalid-state", api.AppStateInvalid}
+
+		for _, state := range invalidStates {
+			req := AppStateChange{State: state}
+			err := req.Validate()
+			require.Error(t, err, "validation should fail for invalid state: %s", state)
+		}
+	})
+}
diff --git a/mobile/requests/input_connection_string_for_bootstrapping.go b/mobile/requests/input_connection_string_for_bootstrapping.go
new file mode 100644
index 000000000..454708850
--- /dev/null
+++ b/mobile/requests/input_connection_string_for_bootstrapping.go
@@ -0,0 +1,16 @@
+package requests
+
+import (
+	"gopkg.in/go-playground/validator.v9"
+
+	"github.com/status-im/status-go/server/pairing"
+)
+
+type InputConnectionStringForBootstrapping struct {
+	ConnectionString     string                        `json:"connectionString" validate:"required"`
+	ReceiverClientConfig *pairing.ReceiverClientConfig `json:"receiverClientConfig" validate:"required"`
+}
+
+func (r *InputConnectionStringForBootstrapping) Validate() error {
+	return validator.New().Struct(r)
+}
diff --git a/mobile/requests/input_connection_string_for_bootstrapping_another_device.go b/mobile/requests/input_connection_string_for_bootstrapping_another_device.go
new file mode 100644
index 000000000..ffc1c34f5
--- /dev/null
+++ b/mobile/requests/input_connection_string_for_bootstrapping_another_device.go
@@ -0,0 +1,16 @@
+package requests
+
+import (
+	"gopkg.in/go-playground/validator.v9"
+
+	"github.com/status-im/status-go/server/pairing"
+)
+
+type InputConnectionStringForBootstrappingAnotherDevice struct {
+	ConnectionString   string                      `json:"connectionString" validate:"required"`
+	SenderClientConfig *pairing.SenderClientConfig `json:"senderClientConfig" validate:"required"`
+}
+
+func (r *InputConnectionStringForBootstrappingAnotherDevice) Validate() error {
+	return validator.New().Struct(r)
+}
diff --git a/mobile/requests/input_connection_string_for_bootstrapping_test.go b/mobile/requests/input_connection_string_for_bootstrapping_test.go
new file mode 100644
index 000000000..7efbc3fc2
--- /dev/null
+++ b/mobile/requests/input_connection_string_for_bootstrapping_test.go
@@ -0,0 +1,38 @@
+package requests
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	protocolRequests "github.com/status-im/status-go/protocol/requests"
+	"github.com/status-im/status-go/server/pairing"
+)
+
+func TestInputConnectionStringForBootstrapping_Validate(t *testing.T) {
+	t.Run("Valid input", func(t *testing.T) {
+		input := &InputConnectionStringForBootstrapping{
+			ConnectionString: "some-connection-string",
+			ReceiverClientConfig: &pairing.ReceiverClientConfig{
+				ReceiverConfig: &pairing.ReceiverConfig{
+					CreateAccount: &protocolRequests.CreateAccount{},
+				},
+			},
+		}
+
+		err := input.Validate()
+		require.NoError(t, err)
+	})
+
+	t.Run("Missing ReceiverClientConfig", func(t *testing.T) {
+		input := &InputConnectionStringForBootstrapping{
+			ConnectionString:     "some-connection-string",
+			ReceiverClientConfig: nil,
+		}
+
+		err := input.Validate()
+		require.Error(t, err)
+		require.Contains(t, err.Error(), "ReceiverClientConfig")
+		require.Contains(t, err.Error(), "required")
+	})
+}
diff --git a/mobile/requests/input_connection_string_for_importing_keypairs_keystores.go b/mobile/requests/input_connection_string_for_importing_keypairs_keystores.go
new file mode 100644
index 000000000..ec837f9ad
--- /dev/null
+++ b/mobile/requests/input_connection_string_for_importing_keypairs_keystores.go
@@ -0,0 +1,16 @@
+package requests
+
+import (
+	"gopkg.in/go-playground/validator.v9"
+
+	"github.com/status-im/status-go/server/pairing"
+)
+
+type InputConnectionStringForImportingKeypairsKeystores struct {
+	ConnectionString                  string                                     `json:"connectionString" validate:"required"`
+	KeystoreFilesReceiverClientConfig *pairing.KeystoreFilesReceiverClientConfig `json:"keystoreFilesReceiverClientConfig" validate:"required"`
+}
+
+func (r *InputConnectionStringForImportingKeypairsKeystores) Validate() error {
+	return validator.New().Struct(r)
+}
diff --git a/mobile/status.go b/mobile/status.go
index 9eb942d7a..3b431d8dc 100644
--- a/mobile/status.go
+++ b/mobile/status.go
@@ -28,6 +28,7 @@ import (
 	"github.com/status-im/status-go/images"
 	"github.com/status-im/status-go/logutils"
 	"github.com/status-im/status-go/logutils/requestlog"
+	m_requests "github.com/status-im/status-go/mobile/requests"
 	"github.com/status-im/status-go/multiaccounts"
 	"github.com/status-im/status-go/multiaccounts/accounts"
 	"github.com/status-im/status-go/multiaccounts/settings"
@@ -282,8 +283,9 @@ func callPrivateRPC(inputJSON string) string {
 	return resp
 }
 
+// Deprecated: Use VerifyAccountPasswordV2 instead
 func VerifyAccountPassword(keyStoreDir, address, password string) string {
-	return callWithResponse(verifyAccountPassword, keyStoreDir, address, password)
+	return verifyAccountPassword(keyStoreDir, address, password)
 }
 
 // verifyAccountPassword verifies account password.
@@ -292,6 +294,26 @@ func verifyAccountPassword(keyStoreDir, address, password string) string {
 	return makeJSONResponse(err)
 }
 
+func VerifyAccountPasswordV2(requestJSON string) string {
+	return callWithResponse(verifyAccountPasswordV2, requestJSON)
+}
+
+func verifyAccountPasswordV2(requestJSON string) string {
+	var request requests.VerifyAccountPassword
+	err := json.Unmarshal([]byte(requestJSON), &request)
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+
+	err = request.Validate()
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+
+	_, err = statusBackend.AccountManager().VerifyAccountPassword(request.KeyStoreDir, request.Address, request.Password)
+	return makeJSONResponse(err)
+}
+
 func VerifyDatabasePasswordV2(requestJSON string) string {
 	return callWithResponse(verifyDatabasePasswordV2, requestJSON)
 }
@@ -568,6 +590,7 @@ func SaveAccountAndLogin(accountData, password, settingsJSON, configJSON, subacc
 	return makeJSONResponse(nil)
 }
 
+// Deprecated: Use DeleteMultiaccountV2 instead
 func DeleteMultiaccount(keyUID, keyStoreDir string) string {
 	return callWithResponse(deleteMultiaccount, keyUID, keyStoreDir)
 }
@@ -578,6 +601,26 @@ func deleteMultiaccount(keyUID, keyStoreDir string) string {
 	return makeJSONResponse(err)
 }
 
+func DeleteMultiaccountV2(requestJSON string) string {
+	return callWithResponse(deleteMultiaccountV2, requestJSON)
+}
+
+func deleteMultiaccountV2(requestJSON string) string {
+	var request requests.DeleteMultiaccount
+	err := json.Unmarshal([]byte(requestJSON), &request)
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+
+	err = request.Validate()
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+
+	err = statusBackend.DeleteMultiaccount(request.KeyUID, request.KeyStoreDir)
+	return makeJSONResponse(err)
+}
+
 func DeleteImportedKeyV2(requestJSON string) string {
 	return callWithResponse(deleteImportedKeyV2, requestJSON)
 }
@@ -710,8 +753,6 @@ func signMessage(rpcParams string) string {
 
 // SignTypedData unmarshall data into TypedData, validate it and signs with selected account,
 // if password matches selected account.
-//
-// Deprecated: Use SignTypedDataV2 instead.
 func SignTypedData(data, address, password string) string {
 	return signTypedData(data, address, password)
 }
@@ -729,26 +770,6 @@ func signTypedData(data, address, password string) string {
 	return prepareJSONResponse(result.String(), err)
 }
 
-func SignTypedDataV2(requestJSON string) string {
-	return callWithResponse(signTypedDataV2, requestJSON)
-}
-
-func signTypedDataV2(requestJSON string) string {
-	var request requests.SignTypedData
-	err := json.Unmarshal([]byte(requestJSON), &request)
-	if err != nil {
-		return prepareJSONResponseWithCode(nil, err, codeFailedParseParams)
-	}
-
-	err = request.Validate()
-	if err != nil {
-		return prepareJSONResponseWithCode(nil, err, codeFailedParseParams)
-	}
-
-	result, err := statusBackend.SignTypedData(request.TypedData, request.Address, request.Password)
-	return prepareJSONResponse(result.String(), err)
-}
-
 // HashTypedData unmarshalls data into TypedData, validates it and hashes it.
 //
 //export HashTypedData
@@ -840,11 +861,13 @@ func sendTransactionWithChainID(chainID int, txArgsJSON, password string) string
 	return prepareJSONResponseWithCode(hash.String(), err, code)
 }
 
+// Deprecated: Use SendTransactionV2 instead.
 func SendTransaction(txArgsJSON, password string) string {
 	return sendTransaction(txArgsJSON, password)
 }
 
 // sendTransaction converts RPC args and calls backend.SendTransaction.
+// Deprecated: Use sendTransactionV2 instead.
 func sendTransaction(txArgsJSON, password string) string {
 	var params transactions.SendTxArgs
 	err := json.Unmarshal([]byte(txArgsJSON), &params)
@@ -859,6 +882,29 @@ func sendTransaction(txArgsJSON, password string) string {
 	return prepareJSONResponseWithCode(hash.String(), err, code)
 }
 
+func SendTransactionV2(requestJSON string) string {
+	return callWithResponse(sendTransactionV2, requestJSON)
+}
+
+func sendTransactionV2(requestJSON string) string {
+	var request requests.SendTransaction
+	err := json.Unmarshal([]byte(requestJSON), &request)
+	if err != nil {
+		return prepareJSONResponseWithCode(nil, err, codeFailedParseParams)
+	}
+
+	err = request.Validate()
+	if err != nil {
+		return prepareJSONResponseWithCode(nil, err, codeFailedParseParams)
+	}
+	hash, err := statusBackend.SendTransaction(request.TxArgs, request.Password)
+	code := codeUnknown
+	if c, ok := errToCodeMap[err]; ok {
+		code = c
+	}
+	return prepareJSONResponseWithCode(hash.String(), err, code)
+}
+
 func SendTransactionWithSignature(txArgsJSON, sigString string) string {
 	return callWithResponse(sendTransactionWithSignature, txArgsJSON, sigString)
 }
@@ -987,6 +1033,7 @@ func addPeer(enode string) string {
 	return makeJSONResponse(err)
 }
 
+// Deprecated: Use ConnectionChangeV2 instead.
 func ConnectionChange(typ string, expensive int) {
 	call(connectionChange, typ, expensive)
 }
@@ -997,13 +1044,51 @@ func connectionChange(typ string, expensive int) {
 	statusBackend.ConnectionChange(typ, expensive == 1)
 }
 
+func ConnectionChangeV2(requestJSON string) string {
+	return callWithResponse(connectionChangeV2, requestJSON)
+}
+
+func connectionChangeV2(requestJSON string) string {
+	var request requests.ConnectionChange
+	err := json.Unmarshal([]byte(requestJSON), &request)
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+	statusBackend.ConnectionChange(request.Type, request.Expensive)
+	return makeJSONResponse(nil)
+}
+
+// Deprecated: Use AppStateChangeV2 instead.
 func AppStateChange(state string) {
 	call(appStateChange, state)
 }
 
 // appStateChange handles app state changes (background/foreground).
 func appStateChange(state string) {
-	statusBackend.AppStateChange(state)
+	s, err := api.ParseAppState(state)
+	if err != nil {
+		logutils.ZapLogger().Error("parse app state failed, ignoring", zap.Error(err))
+		return
+	}
+	statusBackend.AppStateChange(s)
+}
+
+func AppStateChangeV2(requestJSON string) string {
+	return callWithResponse(appStateChangeV2, requestJSON)
+}
+
+func appStateChangeV2(requestJSON string) string {
+	var request m_requests.AppStateChange
+	err := json.Unmarshal([]byte(requestJSON), &request)
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+	err = request.Validate()
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+	statusBackend.AppStateChange(request.State)
+	return makeJSONResponse(nil)
 }
 
 func StartLocalNotifications() string {
@@ -1137,6 +1222,7 @@ func colorID(pk string) string {
 	return prepareJSONResponse(identityUtils.ToColorID(pk))
 }
 
+// Deprecated: Use ValidateMnemonicV2 instead.
 func ValidateMnemonic(mnemonic string) string {
 	return validateMnemonic(mnemonic)
 }
@@ -1161,6 +1247,19 @@ func validateMnemonic(mnemonic string) string {
 	return string(data)
 }
 
+func ValidateMnemonicV2(requestJSON string) string {
+	return callWithResponse(validateMnemonicV2, requestJSON)
+}
+
+func validateMnemonicV2(requestJSON string) string {
+	var request requests.ValidateMnemonic
+	err := json.Unmarshal([]byte(requestJSON), &request)
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+	return validateMnemonic(request.Mnemonic)
+}
+
 func DecompressPublicKey(key string) string {
 	return callWithResponse(decompressPublicKey, key)
 }
@@ -1222,6 +1321,7 @@ func multiformatSerializePublicKey(key, outBase string) string {
 	return cpk
 }
 
+// Deprecated: Use MultiformatDeserializePublicKeyV2 instead.
 func MultiformatDeserializePublicKey(key, outBase string) string {
 	return callWithResponse(multiformatDeserializePublicKey, key, outBase)
 }
@@ -1236,6 +1336,20 @@ func multiformatDeserializePublicKey(key, outBase string) string {
 	return pk
 }
 
+func MultiformatDeserializePublicKeyV2(requestJSON string) string {
+	return callWithResponse(multiformatDeserializePublicKeyV2, requestJSON)
+}
+
+func multiformatDeserializePublicKeyV2(requestJSON string) string {
+	var request requests.MultiformatDeserializePublicKey
+	err := json.Unmarshal([]byte(requestJSON), &request)
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+	return multiformatDeserializePublicKey(request.Key, request.OutBase)
+}
+
+// Deprecated: Use ExportUnencryptedDatabaseV2 instead.
 func ExportUnencryptedDatabase(accountData, password, databasePath string) string {
 	return exportUnencryptedDatabase(accountData, password, databasePath)
 }
@@ -1251,6 +1365,21 @@ func exportUnencryptedDatabase(accountData, password, databasePath string) strin
 	return makeJSONResponse(err)
 }
 
+func ExportUnencryptedDatabaseV2(requestJSON string) string {
+	return callWithResponse(exportUnencryptedDatabaseV2, requestJSON)
+}
+
+func exportUnencryptedDatabaseV2(requestJSON string) string {
+	var request requests.ExportUnencryptedDatabase
+	err := json.Unmarshal([]byte(requestJSON), &request)
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+	err = statusBackend.ExportUnencryptedDatabase(request.Account, request.Password, request.DatabasePath)
+	return makeJSONResponse(err)
+}
+
+// Deprecated: Use ImportUnencryptedDatabaseV2 instead.
 func ImportUnencryptedDatabase(accountData, password, databasePath string) string {
 	return importUnencryptedDatabase(accountData, password, databasePath)
 }
@@ -1266,6 +1395,21 @@ func importUnencryptedDatabase(accountData, password, databasePath string) strin
 	return makeJSONResponse(err)
 }
 
+func ImportUnencryptedDatabaseV2(requestJSON string) string {
+	return callWithResponse(importUnencryptedDatabaseV2, requestJSON)
+}
+
+func importUnencryptedDatabaseV2(requestJSON string) string {
+	var request requests.ImportUnencryptedDatabase
+	err := json.Unmarshal([]byte(requestJSON), &request)
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+	err = statusBackend.ImportUnencryptedDatabase(request.Account, request.Password, request.DatabasePath)
+	return makeJSONResponse(err)
+}
+
+// Deprecated: Use ChangeDatabasePasswordV2 instead.
 func ChangeDatabasePassword(keyUID, password, newPassword string) string {
 	return changeDatabasePassword(keyUID, password, newPassword)
 }
@@ -1276,6 +1420,20 @@ func changeDatabasePassword(keyUID, password, newPassword string) string {
 	return makeJSONResponse(err)
 }
 
+func ChangeDatabasePasswordV2(requestJSON string) string {
+	return callWithResponse(changeDatabasePasswordV2, requestJSON)
+}
+
+func changeDatabasePasswordV2(requestJSON string) string {
+	var request requests.ChangeDatabasePassword
+	err := json.Unmarshal([]byte(requestJSON), &request)
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+	return changeDatabasePassword(request.KeyUID, request.OldPassword, request.NewPassword)
+}
+
+// Deprecated: Use ConvertToKeycardAccountV2 instead.
 func ConvertToKeycardAccount(accountData, settingsJSON, keycardUID, password, newPassword string) string {
 	return convertToKeycardAccount(accountData, settingsJSON, keycardUID, password, newPassword)
 }
@@ -1297,6 +1455,21 @@ func convertToKeycardAccount(accountData, settingsJSON, keycardUID, password, ne
 	return makeJSONResponse(err)
 }
 
+func ConvertToKeycardAccountV2(requestJSON string) string {
+	return callWithResponse(convertToKeycardAccountV2, requestJSON)
+}
+
+func convertToKeycardAccountV2(requestJSON string) string {
+	var request requests.ConvertToKeycardAccount
+	err := json.Unmarshal([]byte(requestJSON), &request)
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+	err = statusBackend.ConvertToKeycardAccount(request.Account, request.Settings, request.KeycardUID, request.OldPassword, request.NewPassword)
+	return makeJSONResponse(err)
+}
+
+// Deprecated: Use ConvertToRegularAccountV2 instead.
 func ConvertToRegularAccount(mnemonic, currPassword, newPassword string) string {
 	return convertToRegularAccount(mnemonic, currPassword, newPassword)
 }
@@ -1307,6 +1480,19 @@ func convertToRegularAccount(mnemonic, currPassword, newPassword string) string
 	return makeJSONResponse(err)
 }
 
+func ConvertToRegularAccountV2(requestJSON string) string {
+	return callWithResponse(convertToRegularAccountV2, requestJSON)
+}
+
+func convertToRegularAccountV2(requestJSON string) string {
+	var request requests.ConvertToRegularAccount
+	err := json.Unmarshal([]byte(requestJSON), &request)
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+	return convertToRegularAccount(request.Mnemonic, request.CurrPassword, request.NewPassword)
+}
+
 func ImageServerTLSCert() string {
 	cert, err := server.PublicMediaTLSCert()
 	if err != nil {
@@ -1390,6 +1576,7 @@ func fleets() string {
 	return string(data)
 }
 
+// Deprecated: Use SwitchFleetV2 instead.
 func SwitchFleet(fleet string, configJSON string) string {
 	return callWithResponse(switchFleet, fleet, configJSON)
 }
@@ -1416,7 +1603,38 @@ func switchFleet(fleet string, configJSON string) string {
 	return makeJSONResponse(err)
 }
 
+func SwitchFleetV2(requestJSON string) string {
+	return callWithResponse(switchFleetV2, requestJSON)
+}
+
+func switchFleetV2(requestJSON string) string {
+	var request requests.SwitchFleet
+	err := json.Unmarshal([]byte(requestJSON), &request)
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+	return switchFleet(request.Fleet, request.ConfigJSON)
+}
+
+// Deprecated: Use GenerateImagesV2 instead.
 func GenerateImages(filepath string, aX, aY, bX, bY int) string {
+	return generateImages(filepath, aX, aY, bX, bY)
+}
+
+func GenerateImagesV2(requestJSON string) string {
+	return callWithResponse(generateImagesV2, requestJSON)
+}
+
+func generateImagesV2(requestJSON string) string {
+	var request requests.GenerateImages
+	err := json.Unmarshal([]byte(requestJSON), &request)
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+	return generateImages(request.Filepath, request.AX, request.AY, request.BX, request.BY)
+}
+
+func generateImages(filepath string, aX, aY, bX, bY int) string {
 	iis, err := images.GenerateIdentityImages(filepath, aX, aY, bX, bY)
 	if err != nil {
 		return makeJSONResponse(err)
@@ -1533,6 +1751,7 @@ func (i *inputConnectionStringForBootstrappingResponse) toJSON(err error) string
 	return string(j)
 }
 
+// Deprecated: Use InputConnectionStringForBootstrappingV2 instead.
 func InputConnectionStringForBootstrapping(cs, configJSON string) string {
 	return callWithResponse(inputConnectionStringForBootstrapping, cs, configJSON)
 }
@@ -1568,7 +1787,13 @@ func inputConnectionStringForBootstrapping(cs, configJSON string) string {
 		return response.toJSON(err)
 	}
 
-	err = pairing.StartUpReceivingClient(statusBackend, cs, configJSON)
+	var conf pairing.ReceiverClientConfig
+	err = json.Unmarshal([]byte(configJSON), &conf)
+	if err != nil {
+		return response.toJSON(err)
+	}
+
+	err = pairing.StartUpReceivingClient(statusBackend, cs, &conf)
 	if err != nil {
 		return response.toJSON(err)
 	}
@@ -1576,6 +1801,46 @@ func inputConnectionStringForBootstrapping(cs, configJSON string) string {
 	return response.toJSON(statusBackend.Logout())
 }
 
+func InputConnectionStringForBootstrappingV2(requestJSON string) string {
+	return callWithResponse(inputConnectionStringForBootstrappingV2, requestJSON)
+}
+
+func inputConnectionStringForBootstrappingV2(requestJSON string) string {
+	var request m_requests.InputConnectionStringForBootstrapping
+	err := json.Unmarshal([]byte(requestJSON), &request)
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+	if err := request.Validate(); err != nil {
+		return makeJSONResponse(err)
+	}
+
+	params := &pairing.ConnectionParams{}
+	err = params.FromString(request.ConnectionString)
+	if err != nil {
+		response := &inputConnectionStringForBootstrappingResponse{}
+		return response.toJSON(fmt.Errorf("could not parse connection string"))
+	}
+	response := &inputConnectionStringForBootstrappingResponse{
+		InstallationID: params.InstallationID(),
+		KeyUID:         params.KeyUID(),
+	}
+
+	err = statusBackend.LocalPairingStateManager.StartPairing(request.ConnectionString)
+	defer func() { statusBackend.LocalPairingStateManager.StopPairing(request.ConnectionString, err) }()
+	if err != nil {
+		return response.toJSON(err)
+	}
+
+	err = pairing.StartUpReceivingClient(statusBackend, request.ConnectionString, request.ReceiverClientConfig)
+	if err != nil {
+		return response.toJSON(err)
+	}
+
+	return response.toJSON(statusBackend.Logout())
+}
+
+// Deprecated: Use InputConnectionStringForBootstrappingAnotherDeviceV2 instead.
 func InputConnectionStringForBootstrappingAnotherDevice(cs, configJSON string) string {
 	return callWithResponse(inputConnectionStringForBootstrappingAnotherDevice, cs, configJSON)
 }
@@ -1598,8 +1863,37 @@ func inputConnectionStringForBootstrappingAnotherDevice(cs, configJSON string) s
 	if err != nil {
 		return makeJSONResponse(err)
 	}
+	var conf pairing.SenderClientConfig
+	err = json.Unmarshal([]byte(configJSON), &conf)
+	if err != nil {
+		return makeJSONResponse(err)
+	}
 
-	err = pairing.StartUpSendingClient(statusBackend, cs, configJSON)
+	err = pairing.StartUpSendingClient(statusBackend, cs, &conf)
+	return makeJSONResponse(err)
+}
+
+func InputConnectionStringForBootstrappingAnotherDeviceV2(requestJSON string) string {
+	return callWithResponse(inputConnectionStringForBootstrappingAnotherDeviceV2, requestJSON)
+}
+
+func inputConnectionStringForBootstrappingAnotherDeviceV2(requestJSON string) string {
+	var request m_requests.InputConnectionStringForBootstrappingAnotherDevice
+	err := json.Unmarshal([]byte(requestJSON), &request)
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+	if err := request.Validate(); err != nil {
+		return makeJSONResponse(err)
+	}
+
+	err = statusBackend.LocalPairingStateManager.StartPairing(request.ConnectionString)
+	defer func() { statusBackend.LocalPairingStateManager.StopPairing(request.ConnectionString, err) }()
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+
+	err = pairing.StartUpSendingClient(statusBackend, request.ConnectionString, request.SenderClientConfig)
 	return makeJSONResponse(err)
 }
 
@@ -1622,6 +1916,7 @@ func getConnectionStringForExportingKeypairsKeystores(configJSON string) string
 	return cs
 }
 
+// Deprecated: Use InputConnectionStringForImportingKeypairsKeystoresV2 instead.
 func InputConnectionStringForImportingKeypairsKeystores(cs, configJSON string) string {
 	return callWithResponse(inputConnectionStringForImportingKeypairsKeystores, cs, configJSON)
 }
@@ -1637,7 +1932,29 @@ func inputConnectionStringForImportingKeypairsKeystores(cs, configJSON string) s
 		return makeJSONResponse(fmt.Errorf("no config given, ReceiverClientConfig is expected"))
 	}
 
-	err := pairing.StartUpKeystoreFilesReceivingClient(statusBackend, cs, configJSON)
+	var conf pairing.KeystoreFilesReceiverClientConfig
+	err := json.Unmarshal([]byte(configJSON), &conf)
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+	err = pairing.StartUpKeystoreFilesReceivingClient(statusBackend, cs, &conf)
+	return makeJSONResponse(err)
+}
+
+func InputConnectionStringForImportingKeypairsKeystoresV2(requestJSON string) string {
+	return callWithResponse(inputConnectionStringForImportingKeypairsKeystoresV2, requestJSON)
+}
+
+func inputConnectionStringForImportingKeypairsKeystoresV2(requestJSON string) string {
+	var request m_requests.InputConnectionStringForImportingKeypairsKeystores
+	err := json.Unmarshal([]byte(requestJSON), &request)
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+	if err := request.Validate(); err != nil {
+		return makeJSONResponse(err)
+	}
+	err = pairing.StartUpKeystoreFilesReceivingClient(statusBackend, request.ConnectionString, request.KeystoreFilesReceiverClientConfig)
 	return makeJSONResponse(err)
 }
 
@@ -1653,6 +1970,7 @@ func validateConnectionString(cs string) string {
 	return err.Error()
 }
 
+// Deprecated: Use EncodeTransferV2 instead.
 func EncodeTransfer(to string, value string) string {
 	return callWithResponse(encodeTransfer, to, value)
 }
@@ -1666,6 +1984,20 @@ func encodeTransfer(to string, value string) string {
 	return result
 }
 
+func EncodeTransferV2(requestJSON string) string {
+	return callWithResponse(encodeTransferV2, requestJSON)
+}
+
+func encodeTransferV2(requestJSON string) string {
+	var request requests.EncodeTransfer
+	err := json.Unmarshal([]byte(requestJSON), &request)
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+	return encodeTransfer(request.To, request.Value)
+}
+
+// Deprecated: Use EncodeFunctionCallV2 instead.
 func EncodeFunctionCall(method string, paramsJSON string) string {
 	return callWithResponse(encodeFunctionCall, method, paramsJSON)
 }
@@ -1679,6 +2011,19 @@ func encodeFunctionCall(method string, paramsJSON string) string {
 	return result
 }
 
+func EncodeFunctionCallV2(requestJSON string) string {
+	return callWithResponse(encodeFunctionCallV2, requestJSON)
+}
+
+func encodeFunctionCallV2(requestJSON string) string {
+	var request requests.EncodeFunctionCall
+	err := json.Unmarshal([]byte(requestJSON), &request)
+	if err != nil {
+		return makeJSONResponse(err)
+	}
+	return encodeFunctionCall(request.Method, request.ParamsJSON)
+}
+
 func DecodeParameters(decodeParamJSON string) string {
 	return decodeParameters(decodeParamJSON)
 }
diff --git a/protocol/requests/change_database_password.go b/protocol/requests/change_database_password.go
new file mode 100644
index 000000000..710b08cf0
--- /dev/null
+++ b/protocol/requests/change_database_password.go
@@ -0,0 +1,7 @@
+package requests
+
+type ChangeDatabasePassword struct {
+	KeyUID      string `json:"keyUID"`
+	OldPassword string `json:"oldPassword"`
+	NewPassword string `json:"newPassword"`
+}
diff --git a/protocol/requests/connection_change.go b/protocol/requests/connection_change.go
new file mode 100644
index 000000000..5124c18c5
--- /dev/null
+++ b/protocol/requests/connection_change.go
@@ -0,0 +1,6 @@
+package requests
+
+type ConnectionChange struct {
+	Type      string `json:"type"`
+	Expensive bool   `json:"expensive"`
+}
diff --git a/protocol/requests/convert_to_keycard_account.go b/protocol/requests/convert_to_keycard_account.go
new file mode 100644
index 000000000..889283525
--- /dev/null
+++ b/protocol/requests/convert_to_keycard_account.go
@@ -0,0 +1,14 @@
+package requests
+
+import (
+	"github.com/status-im/status-go/multiaccounts"
+	"github.com/status-im/status-go/multiaccounts/settings"
+)
+
+type ConvertToKeycardAccount struct {
+	Account     multiaccounts.Account `json:"account"`
+	Settings    settings.Settings     `json:"settings"`
+	KeycardUID  string                `json:"keycardUID"`
+	OldPassword string                `json:"oldPassword"`
+	NewPassword string                `json:"newPassword"`
+}
diff --git a/protocol/requests/convert_to_regular_account.go b/protocol/requests/convert_to_regular_account.go
new file mode 100644
index 000000000..b33cef8ae
--- /dev/null
+++ b/protocol/requests/convert_to_regular_account.go
@@ -0,0 +1,7 @@
+package requests
+
+type ConvertToRegularAccount struct {
+	Mnemonic     string `json:"mnemonic"`
+	CurrPassword string `json:"currPassword"`
+	NewPassword  string `json:"newPassword"`
+}
diff --git a/protocol/requests/delete_multiaccount.go b/protocol/requests/delete_multiaccount.go
new file mode 100644
index 000000000..c90dc990c
--- /dev/null
+++ b/protocol/requests/delete_multiaccount.go
@@ -0,0 +1,19 @@
+package requests
+
+import (
+	"gopkg.in/go-playground/validator.v9"
+)
+
+// DeleteMultiaccount represents a request to delete a multiaccount.
+type DeleteMultiaccount struct {
+	// KeyUID is the unique identifier for the key.
+	KeyUID string `json:"keyUID" validate:"required"`
+
+	// KeyStoreDir is the directory where the keystore files are located.
+	KeyStoreDir string `json:"keyStoreDir" validate:"required"`
+}
+
+// Validate checks the validity of the DeleteMultiaccount request.
+func (v *DeleteMultiaccount) Validate() error {
+	return validator.New().Struct(v)
+}
diff --git a/protocol/requests/encode_function_call.go b/protocol/requests/encode_function_call.go
new file mode 100644
index 000000000..1671e0ca4
--- /dev/null
+++ b/protocol/requests/encode_function_call.go
@@ -0,0 +1,6 @@
+package requests
+
+type EncodeFunctionCall struct {
+	Method     string `json:"method"`
+	ParamsJSON string `json:"paramsJSON"`
+}
diff --git a/protocol/requests/encode_transfer.go b/protocol/requests/encode_transfer.go
new file mode 100644
index 000000000..a5d9beaf6
--- /dev/null
+++ b/protocol/requests/encode_transfer.go
@@ -0,0 +1,6 @@
+package requests
+
+type EncodeTransfer struct {
+	To    string `json:"to"`
+	Value string `json:"value"`
+}
diff --git a/protocol/requests/export_unencrypted_database.go b/protocol/requests/export_unencrypted_database.go
new file mode 100644
index 000000000..0a3525509
--- /dev/null
+++ b/protocol/requests/export_unencrypted_database.go
@@ -0,0 +1,9 @@
+package requests
+
+import "github.com/status-im/status-go/multiaccounts"
+
+type ExportUnencryptedDatabase struct {
+	Account      multiaccounts.Account `json:"account"`
+	Password     string                `json:"password"`
+	DatabasePath string                `json:"databasePath"`
+}
diff --git a/protocol/requests/generate_images.go b/protocol/requests/generate_images.go
new file mode 100644
index 000000000..3385ca734
--- /dev/null
+++ b/protocol/requests/generate_images.go
@@ -0,0 +1,9 @@
+package requests
+
+type GenerateImages struct {
+	Filepath string `json:"filepath"`
+	AX       int    `json:"aX"`
+	AY       int    `json:"aY"`
+	BX       int    `json:"bX"`
+	BY       int    `json:"bY"`
+}
diff --git a/protocol/requests/import_unencrypted_database.go b/protocol/requests/import_unencrypted_database.go
new file mode 100644
index 000000000..46e93200a
--- /dev/null
+++ b/protocol/requests/import_unencrypted_database.go
@@ -0,0 +1,9 @@
+package requests
+
+import "github.com/status-im/status-go/multiaccounts"
+
+type ImportUnencryptedDatabase struct {
+	Account      multiaccounts.Account `json:"account"`
+	Password     string                `json:"password"`
+	DatabasePath string                `json:"databasePath"`
+}
diff --git a/protocol/requests/input_connection_string_for_importing_keypairs_keystores.go b/protocol/requests/input_connection_string_for_importing_keypairs_keystores.go
new file mode 100644
index 000000000..689c02b60
--- /dev/null
+++ b/protocol/requests/input_connection_string_for_importing_keypairs_keystores.go
@@ -0,0 +1,6 @@
+package requests
+
+type InputConnectionStringForImportingKeypairsKeystores struct {
+	ConnectionString string `json:"connectionString"`
+	ConfigJSON       string `json:"configJSON"`
+}
diff --git a/protocol/requests/multiformat_deserialize_public_key.go b/protocol/requests/multiformat_deserialize_public_key.go
new file mode 100644
index 000000000..0ee4df770
--- /dev/null
+++ b/protocol/requests/multiformat_deserialize_public_key.go
@@ -0,0 +1,6 @@
+package requests
+
+type MultiformatDeserializePublicKey struct {
+	Key     string `json:"key"`
+	OutBase string `json:"outBase"`
+}
diff --git a/protocol/requests/send_transaction.go b/protocol/requests/send_transaction.go
new file mode 100644
index 000000000..a28b3a166
--- /dev/null
+++ b/protocol/requests/send_transaction.go
@@ -0,0 +1,19 @@
+package requests
+
+import (
+	"gopkg.in/go-playground/validator.v9"
+
+	"github.com/status-im/status-go/transactions"
+)
+
+// SendTransaction represents a request to send a transaction.
+type SendTransaction struct {
+	TxArgs   transactions.SendTxArgs `json:"txArgs"`
+	Password string                  `json:"password" validate:"required"`
+}
+
+// Validate checks the fields of SendTransaction to ensure they meet the requirements.
+func (st *SendTransaction) Validate() error {
+	validate := validator.New()
+	return validate.Struct(st)
+}
diff --git a/protocol/requests/switch_fleet.go b/protocol/requests/switch_fleet.go
new file mode 100644
index 000000000..5d7d155d2
--- /dev/null
+++ b/protocol/requests/switch_fleet.go
@@ -0,0 +1,6 @@
+package requests
+
+type SwitchFleet struct {
+	Fleet      string `json:"fleet"`
+	ConfigJSON string `json:"configJSON"`
+}
diff --git a/protocol/requests/validate_mnemonic.go b/protocol/requests/validate_mnemonic.go
new file mode 100644
index 000000000..cb50e46bd
--- /dev/null
+++ b/protocol/requests/validate_mnemonic.go
@@ -0,0 +1,5 @@
+package requests
+
+type ValidateMnemonic struct {
+	Mnemonic string `json:"mnemonic"`
+}
diff --git a/protocol/requests/verify_account_password.go b/protocol/requests/verify_account_password.go
new file mode 100644
index 000000000..78b263461
--- /dev/null
+++ b/protocol/requests/verify_account_password.go
@@ -0,0 +1,22 @@
+package requests
+
+import (
+	"gopkg.in/go-playground/validator.v9"
+)
+
+// VerifyAccountPassword represents a request to verify an account password.
+type VerifyAccountPassword struct {
+	// KeyStoreDir is the directory where the keystore files are located.
+	KeyStoreDir string `json:"keyStoreDir" validate:"required"`
+
+	// Address is the Ethereum address for the account.
+	Address string `json:"address" validate:"required"`
+
+	// Password is the password to verify against the keystore.
+	Password string `json:"password" validate:"required"`
+}
+
+// Validate checks the validity of the VerifyAccountPassword request.
+func (v *VerifyAccountPassword) Validate() error {
+	return validator.New().Struct(v)
+}
diff --git a/server/pairing/client.go b/server/pairing/client.go
index 5fe207c87..f8fc7a392 100644
--- a/server/pairing/client.go
+++ b/server/pairing/client.go
@@ -4,7 +4,6 @@ import (
 	"bytes"
 	"crypto/tls"
 	"crypto/x509"
-	"encoding/json"
 	"encoding/pem"
 	"fmt"
 	"io"
@@ -311,18 +310,13 @@ func (c *SenderClient) receiveInstallationData() error {
 }
 
 // setupSendingClient creates a new SenderClient after parsing string inputs
-func setupSendingClient(backend *api.GethStatusBackend, cs, configJSON string) (*SenderClient, error) {
+func setupSendingClient(backend *api.GethStatusBackend, cs string, conf *SenderClientConfig) (*SenderClient, error) {
 	ccp := new(ConnectionParams)
 	err := ccp.FromString(cs)
 	if err != nil {
 		return nil, err
 	}
 
-	conf := NewSenderClientConfig()
-	err = json.Unmarshal([]byte(configJSON), conf)
-	if err != nil {
-		return nil, err
-	}
 	err = validateAndVerifyPassword(conf, conf.SenderConfig)
 	if err != nil {
 		return nil, err
@@ -334,8 +328,8 @@ func setupSendingClient(backend *api.GethStatusBackend, cs, configJSON string) (
 }
 
 // StartUpSendingClient creates a SenderClient and triggers all `send` calls in sequence to the ReceiverServer
-func StartUpSendingClient(backend *api.GethStatusBackend, cs, configJSON string) error {
-	c, err := setupSendingClient(backend, cs, configJSON)
+func StartUpSendingClient(backend *api.GethStatusBackend, cs string, conf *SenderClientConfig) error {
+	c, err := setupSendingClient(backend, cs, conf)
 	if err != nil {
 		return err
 	}
@@ -514,19 +508,13 @@ func (c *ReceiverClient) sendInstallationData() error {
 }
 
 // setupReceivingClient creates a new ReceiverClient after parsing string inputs
-func setupReceivingClient(backend *api.GethStatusBackend, cs, configJSON string) (*ReceiverClient, error) {
+func setupReceivingClient(backend *api.GethStatusBackend, cs string, conf *ReceiverClientConfig) (*ReceiverClient, error) {
 	ccp := new(ConnectionParams)
 	err := ccp.FromString(cs)
 	if err != nil {
 		return nil, err
 	}
 
-	conf := NewReceiverClientConfig()
-	err = json.Unmarshal([]byte(configJSON), conf)
-	if err != nil {
-		return nil, err
-	}
-
 	// This is a temporal solution to allow clients not to pass DeviceType.
 	// Check DeviceType deprecation reason for more info.
 	conf.ReceiverConfig.DeviceType = runtime.GOOS
@@ -548,8 +536,8 @@ func setupReceivingClient(backend *api.GethStatusBackend, cs, configJSON string)
 }
 
 // StartUpReceivingClient creates a ReceiverClient and triggers all `receive` calls in sequence to the SenderServer
-func StartUpReceivingClient(backend *api.GethStatusBackend, cs, configJSON string) error {
-	c, err := setupReceivingClient(backend, cs, configJSON)
+func StartUpReceivingClient(backend *api.GethStatusBackend, cs string, conf *ReceiverClientConfig) error {
+	c, err := setupReceivingClient(backend, cs, conf)
 	if err != nil {
 		return err
 	}
@@ -652,18 +640,13 @@ func (c *KeystoreFilesReceiverClient) receiveKeystoreFilesData() error {
 }
 
 // setupKeystoreFilesReceivingClient creates a new ReceiverClient after parsing string inputs
-func setupKeystoreFilesReceivingClient(backend *api.GethStatusBackend, cs, configJSON string) (*KeystoreFilesReceiverClient, error) {
+func setupKeystoreFilesReceivingClient(backend *api.GethStatusBackend, cs string, conf *KeystoreFilesReceiverClientConfig) (*KeystoreFilesReceiverClient, error) {
 	ccp := new(ConnectionParams)
 	err := ccp.FromString(cs)
 	if err != nil {
 		return nil, err
 	}
 
-	conf := NewKeystoreFilesReceiverClientConfig()
-	err = json.Unmarshal([]byte(configJSON), conf)
-	if err != nil {
-		return nil, err
-	}
 	err = validateKeystoreFilesConfig(backend, conf)
 	if err != nil {
 		return nil, err
@@ -673,8 +656,8 @@ func setupKeystoreFilesReceivingClient(backend *api.GethStatusBackend, cs, confi
 }
 
 // StartUpKeystoreFilesReceivingClient creates a KeystoreFilesReceiverClient and triggers all `receive` calls in sequence to the KeystoreFilesSenderServer
-func StartUpKeystoreFilesReceivingClient(backend *api.GethStatusBackend, cs, configJSON string) error {
-	c, err := setupKeystoreFilesReceivingClient(backend, cs, configJSON)
+func StartUpKeystoreFilesReceivingClient(backend *api.GethStatusBackend, cs string, conf *KeystoreFilesReceiverClientConfig) error {
+	c, err := setupKeystoreFilesReceivingClient(backend, cs, conf)
 	if err != nil {
 		return err
 	}
diff --git a/server/pairing/sync_device_test.go b/server/pairing/sync_device_test.go
index 14ce6bffd..02df4f1f6 100644
--- a/server/pairing/sync_device_test.go
+++ b/server/pairing/sync_device_test.go
@@ -155,10 +155,7 @@ func (s *SyncDeviceSuite) pairAccounts(serverBackend *api.GethStatusBackend, ser
 		ClientConfig: new(ClientConfig),
 	}
 
-	clientConfigBytes, err := json.Marshal(clientPayloadSourceConfig)
-	require.NoError(s.T(), err)
-
-	err = StartUpReceivingClient(clientBackend, connectionString, string(clientConfigBytes))
+	err = StartUpReceivingClient(clientBackend, connectionString, &clientPayloadSourceConfig)
 	require.NoError(s.T(), err)
 
 	require.True(s.T(), serverBackend.Messenger().HasPairedDevices())
@@ -279,18 +276,19 @@ func (s *SyncDeviceSuite) TestPairingSyncDeviceClientAsSender() {
 	clientActiveAccount, err := clientBackend.GetActiveAccount()
 	require.NoError(s.T(), err)
 	clientKeystorePath := filepath.Join(clientTmpDir, api.DefaultKeystoreRelativePath, clientActiveAccount.KeyUID)
-	clientPayloadSourceConfig := SenderClientConfig{
-		SenderConfig: &SenderConfig{
-			KeystorePath: clientKeystorePath,
-			DeviceType:   "android",
-			KeyUID:       clientActiveAccount.KeyUID,
-			Password:     s.password,
-		},
-		ClientConfig: new(ClientConfig),
+
+	makeNewSenderClientConfig := func() *SenderClientConfig {
+		return &SenderClientConfig{
+			SenderConfig: &SenderConfig{
+				KeystorePath: clientKeystorePath,
+				DeviceType:   "android",
+				KeyUID:       clientActiveAccount.KeyUID,
+				Password:     s.password,
+			},
+			ClientConfig: new(ClientConfig),
+		}
 	}
-	clientConfigBytes, err := json.Marshal(clientPayloadSourceConfig)
-	require.NoError(s.T(), err)
-	err = StartUpSendingClient(clientBackend, cs, string(clientConfigBytes))
+	err = StartUpSendingClient(clientBackend, cs, makeNewSenderClientConfig())
 	require.NoError(s.T(), err)
 
 	// check that the server has the same data as the client
@@ -339,7 +337,7 @@ func (s *SyncDeviceSuite) TestPairingSyncDeviceClientAsSender() {
 	// repeat local pairing, we should expect no error after receiver logged in
 	cs, err = StartUpReceiverServer(serverBackend, string(serverConfigBytes))
 	require.NoError(s.T(), err)
-	err = StartUpSendingClient(clientBackend, cs, string(clientConfigBytes))
+	err = StartUpSendingClient(clientBackend, cs, makeNewSenderClientConfig())
 	require.NoError(s.T(), err)
 	require.True(s.T(), clientMessenger.HasPairedDevices())
 	require.True(s.T(), serverMessenger.HasPairedDevices())
@@ -348,7 +346,7 @@ func (s *SyncDeviceSuite) TestPairingSyncDeviceClientAsSender() {
 	require.NoError(s.T(), serverBackend.Logout())
 	cs, err = StartUpReceiverServer(serverBackend, string(serverConfigBytes))
 	require.NoError(s.T(), err)
-	err = StartUpSendingClient(clientBackend, cs, string(clientConfigBytes))
+	err = StartUpSendingClient(clientBackend, cs, makeNewSenderClientConfig())
 	require.NoError(s.T(), err)
 }
 
@@ -418,19 +416,19 @@ func (s *SyncDeviceSuite) TestPairingSyncDeviceClientAsReceiver() {
 	err = clientBackend.OpenAccounts()
 	require.NoError(s.T(), err)
 
-	clientPayloadSourceConfig := ReceiverClientConfig{
-		ReceiverConfig: &ReceiverConfig{
-			CreateAccount: &requests.CreateAccount{
-				RootDataDir:   clientTmpDir,
-				KdfIterations: expectedKDFIterations,
-				DeviceName:    "device-1",
+	makeNewReceiverClientConfig := func() *ReceiverClientConfig {
+		return &ReceiverClientConfig{
+			ReceiverConfig: &ReceiverConfig{
+				CreateAccount: &requests.CreateAccount{
+					RootDataDir:   clientTmpDir,
+					KdfIterations: expectedKDFIterations,
+					DeviceName:    "device-1",
+				},
 			},
-		},
-		ClientConfig: new(ClientConfig),
+			ClientConfig: new(ClientConfig),
+		}
 	}
-	clientConfigBytes, err := json.Marshal(clientPayloadSourceConfig)
-	require.NoError(s.T(), err)
-	err = StartUpReceivingClient(clientBackend, cs, string(clientConfigBytes))
+	err = StartUpReceivingClient(clientBackend, cs, makeNewReceiverClientConfig())
 	require.NoError(s.T(), err)
 
 	// check that the client has the same data as the server
@@ -478,7 +476,7 @@ func (s *SyncDeviceSuite) TestPairingSyncDeviceClientAsReceiver() {
 	// repeat local pairing, we should expect no error after receiver logged in
 	cs, err = StartUpSenderServer(serverBackend, string(configBytes))
 	require.NoError(s.T(), err)
-	err = StartUpReceivingClient(clientBackend, cs, string(clientConfigBytes))
+	err = StartUpReceivingClient(clientBackend, cs, makeNewReceiverClientConfig())
 	require.NoError(s.T(), err)
 	require.True(s.T(), serverMessenger.HasPairedDevices())
 	require.True(s.T(), clientMessenger.HasPairedDevices())
@@ -487,7 +485,7 @@ func (s *SyncDeviceSuite) TestPairingSyncDeviceClientAsReceiver() {
 	require.NoError(s.T(), clientBackend.Logout())
 	cs, err = StartUpSenderServer(serverBackend, string(configBytes))
 	require.NoError(s.T(), err)
-	err = StartUpReceivingClient(clientBackend, cs, string(clientConfigBytes))
+	err = StartUpReceivingClient(clientBackend, cs, makeNewReceiverClientConfig())
 	require.NoError(s.T(), err)
 }
 
@@ -849,9 +847,7 @@ func (s *SyncDeviceSuite) TestTransferringKeystoreFiles() {
 		},
 		ClientConfig: new(ClientConfig),
 	}
-	clientConfigBytes, err := json.Marshal(clientPayloadSourceConfig)
-	require.NoError(s.T(), err)
-	err = StartUpKeystoreFilesReceivingClient(clientBackend, cs, string(clientConfigBytes))
+	err = StartUpKeystoreFilesReceivingClient(clientBackend, cs, &clientPayloadSourceConfig)
 	require.NoError(s.T(), err)
 
 	// check client - client should contain keystore files for imported seed phrase
@@ -1157,9 +1153,7 @@ func (s *SyncDeviceSuite) TestTransferringKeystoreFilesAfterStopUisngKeycard() {
 		},
 		ClientConfig: new(ClientConfig),
 	}
-	clientConfigBytes, err := json.Marshal(clientPayloadSourceConfig)
-	require.NoError(s.T(), err)
-	err = StartUpKeystoreFilesReceivingClient(clientBackend, cs, string(clientConfigBytes))
+	err = StartUpKeystoreFilesReceivingClient(clientBackend, cs, &clientPayloadSourceConfig)
 	require.NoError(s.T(), err)
 
 	// Check server - server should contain keystore files for imported seed phrase
@@ -1212,9 +1206,7 @@ func (s *SyncDeviceSuite) TestPreventLoggedInAccountLocalPairingClientAsReceiver
 		},
 		ClientConfig: new(ClientConfig),
 	}
-	clientConfigBytes, err := json.Marshal(clientPayloadSourceConfig)
-	s.NoError(err)
-	err = StartUpReceivingClient(clientBackend, cs, string(clientConfigBytes))
+	err = StartUpReceivingClient(clientBackend, cs, &clientPayloadSourceConfig)
 	s.ErrorIs(err, ErrLoggedInKeyUIDConflict)
 }
 
@@ -1256,8 +1248,6 @@ func (s *SyncDeviceSuite) TestPreventLoggedInAccountLocalPairingClientAsSender()
 		},
 		ClientConfig: new(ClientConfig),
 	}
-	clientConfigBytes, err := json.Marshal(clientPayloadSourceConfig)
-	s.NoError(err)
-	err = StartUpSendingClient(clientBackend, cs, string(clientConfigBytes))
+	err = StartUpSendingClient(clientBackend, cs, &clientPayloadSourceConfig)
 	s.ErrorContains(err, "[client] status not ok when sending account data, received '500 Internal Server Error'")
 }
diff --git a/server/server.go b/server/server.go
index 70c2b0caa..03a0c4d54 100644
--- a/server/server.go
+++ b/server/server.go
@@ -57,10 +57,23 @@ func (s *Server) mustGetHost() string {
 
 func (s *Server) listenAndServe() {
 	defer common.LogOnPanic()
-	cfg := &tls.Config{Certificates: []tls.Certificate{*s.cert}, ServerName: s.hostname, MinVersion: tls.VersionTLS12}
 
-	// in case of restart, we should use the same port as the first start in order not to break existing links
-	listener, err := tls.Listen("tcp", s.getHost(), cfg)
+	var listener net.Listener
+	var err error
+
+	if s.cert != nil {
+		// HTTPS mode
+		cfg := &tls.Config{
+			Certificates: []tls.Certificate{*s.cert},
+			ServerName:   s.hostname,
+			MinVersion:   tls.VersionTLS12,
+		}
+		listener, err = tls.Listen("tcp", s.getHost(), cfg)
+	} else {
+		// HTTP mode
+		listener, err = net.Listen("tcp", s.getHost())
+	}
+
 	if err != nil {
 		s.logger.Error("failed to start server, retrying", zap.Error(err))
 		s.ResetPort()
diff --git a/server/server_media.go b/server/server_media.go
index 0af8c7647..8f5100f27 100644
--- a/server/server_media.go
+++ b/server/server_media.go
@@ -1,6 +1,7 @@
 package server
 
 import (
+	"crypto/tls"
 	"database/sql"
 	"net/url"
 	"strconv"
@@ -13,6 +14,14 @@ import (
 	"github.com/status-im/status-go/signal"
 )
 
+var (
+	// UseHTTP controls whether the media server uses HTTP instead of HTTPS.
+	// Set to true to avoid TLS certificate issues with react-native-fast-image
+	// on Android, which has limitations with dynamic certificate updates.
+	// Pls check doc/use-status-backend-server.md in status-mobile for more details
+	UseHTTP = false
+)
+
 type MediaServer struct {
 	Server
 
@@ -24,14 +33,18 @@ type MediaServer struct {
 
 // NewMediaServer returns a *MediaServer
 func NewMediaServer(db *sql.DB, downloader *ipfs.Downloader, multiaccountsDB *multiaccounts.Database, walletDB *sql.DB) (*MediaServer, error) {
-	err := generateMediaTLSCert()
-	if err != nil {
-		return nil, err
+	var cert *tls.Certificate
+	if !UseHTTP {
+		err := generateMediaTLSCert()
+		if err != nil {
+			return nil, err
+		}
+		cert = globalMediaCertificate
 	}
 
 	s := &MediaServer{
 		Server: NewServer(
-			globalMediaCertificate,
+			cert,
 			Localhost,
 			signal.SendMediaServerStarted,
 			logutils.ZapLogger().Named("MediaServer"),
@@ -65,6 +78,13 @@ func NewMediaServer(db *sql.DB, downloader *ipfs.Downloader, multiaccountsDB *mu
 	return s, nil
 }
 
+func (s *MediaServer) MakeBaseURL() *url.URL {
+	return &url.URL{
+		Scheme: map[bool]string{true: "http", false: "https"}[UseHTTP],
+		Host:   s.mustGetHost(),
+	}
+}
+
 func (s *MediaServer) MakeImageServerURL() string {
 	u := s.MakeBaseURL()
 	u.Path = basePath + "/"