diff --git a/android/app/build.gradle b/android/app/build.gradle
index c43c52ae3d..68d70b3da7 100644
--- a/android/app/build.gradle
+++ b/android/app/build.gradle
@@ -74,7 +74,7 @@ import com.android.build.OutputFile
  * ]
  */
 project.ext.react = [
-        nodeExecutableAndArgs: ["node", "--max-old-space-size=4096"],
+        nodeExecutableAndArgs: ["node", "--max-old-space-size=8192"],
         entryFile: "index.android.js"
 ]
 
diff --git a/clj-rn.conf.edn b/clj-rn.conf.edn
index ea0dab5125..c379fd7b15 100644
--- a/clj-rn.conf.edn
+++ b/clj-rn.conf.edn
@@ -22,6 +22,7 @@
               "react-native-firebase"
               "homoglyph-finder"
               "web3"
+              "web3-utils"
               "chance"
               "instabug-reactnative"
               "react-native-http-bridge"
diff --git a/desktop_files/package-lock.json b/desktop_files/package-lock.json
index b8ec03a2e5..c0bcde3b85 100644
--- a/desktop_files/package-lock.json
+++ b/desktop_files/package-lock.json
@@ -5,25 +5,25 @@
   "requires": true,
   "dependencies": {
     "@babel/code-frame": {
-      "version": "7.0.0-rc.2",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.0.0-rc.2.tgz",
-      "integrity": "sha512-+cVix+HBNakVp7IU1WReJV8dnJl/yaBA5JRXc758BSrvJCH2hKp1Z0xHIiUaOvxMwKXc3EXGIYhlnx5T+6ofGA==",
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.0.0.tgz",
+      "integrity": "sha512-OfC2uemaknXr87bdLUkWog7nYuliM9Ij5HUcajsVcMCpQrcLmtxRbVFTIqmcSkSeYRBFBRxs2FiUqFJDLdiebA==",
       "requires": {
-        "@babel/highlight": "7.0.0-rc.2"
+        "@babel/highlight": "7.0.0"
       }
     },
     "@babel/core": {
-      "version": "7.0.0-rc.2",
-      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.0.0-rc.2.tgz",
-      "integrity": "sha512-8VZqKdLMUBfvSDq+V8CWjVBh7y+b2FY+4daFAWN0pgrdgw/UfrEy8afe9CVfppwblROZZVCxGWSSGOBo84rQjg==",
+      "version": "7.0.1",
+      "resolved": "https://registry.npmjs.org/@babel/core/-/core-7.0.1.tgz",
+      "integrity": "sha512-7Yy2vRB6KYbhWeIrrwJmKv9UwDxokmlo43wi6AV84oNs4Gi71NTNGh3YxY/hK3+CxuSc6wcKSl25F2tQOhm1GQ==",
       "requires": {
-        "@babel/code-frame": "7.0.0-rc.2",
-        "@babel/generator": "7.0.0-rc.2",
-        "@babel/helpers": "7.0.0-rc.2",
-        "@babel/parser": "7.0.0-rc.2",
-        "@babel/template": "7.0.0-rc.2",
-        "@babel/traverse": "7.0.0-rc.2",
-        "@babel/types": "7.0.0-rc.2",
+        "@babel/code-frame": "7.0.0",
+        "@babel/generator": "7.0.0",
+        "@babel/helpers": "7.1.0",
+        "@babel/parser": "7.1.0",
+        "@babel/template": "7.1.0",
+        "@babel/traverse": "7.1.0",
+        "@babel/types": "7.0.0",
         "convert-source-map": "1.6.0",
         "debug": "3.2.5",
         "json5": "0.5.1",
@@ -34,11 +34,11 @@
       }
     },
     "@babel/generator": {
-      "version": "7.0.0-rc.2",
-      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.0.0-rc.2.tgz",
-      "integrity": "sha512-kD6hlprDaBy17V8qd9uXJbYC5ZYyCggieT+tiGzCwayA7oyT5ynPec3MNkWQHkLyhB7IP2n3c/Ep329jOPQY/g==",
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.0.0.tgz",
+      "integrity": "sha512-/BM2vupkpbZXq22l1ALO7MqXJZH2k8bKVv8Y+pABFnzWdztDB/ZLveP5At21vLz5c2YtSE6p7j2FZEsqafMz5Q==",
       "requires": {
-        "@babel/types": "7.0.0-rc.2",
+        "@babel/types": "7.0.0",
         "jsesc": "2.5.1",
         "lodash": "4.17.11",
         "source-map": "0.5.7",
@@ -46,944 +46,201 @@
       }
     },
     "@babel/helper-annotate-as-pure": {
-      "version": "7.0.0-beta.47",
-      "resolved": "https://registry.npmjs.org/@babel/helper-annotate-as-pure/-/helper-annotate-as-pure-7.0.0-beta.47.tgz",
-      "integrity": "sha512-Pjxb/PrxyKWc7jcAXlawvNAQMxxY+tSSNC5wxJstJjpO10mocmGzBOqNYjxdvVhMb3d0BEPQ8mR+D65fFpZ+TA==",
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-annotate-as-pure/-/helper-annotate-as-pure-7.0.0.tgz",
+      "integrity": "sha512-3UYcJUj9kvSLbLbUIfQTqzcy5VX7GRZ/CCDrnOaZorFFM01aXp1+GJwuFGV4NDDoAS+mOUyHcO6UD/RfqOks3Q==",
       "requires": {
-        "@babel/types": "7.0.0-beta.47"
-      },
-      "dependencies": {
-        "@babel/types": {
-          "version": "7.0.0-beta.47",
-          "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.0.0-beta.47.tgz",
-          "integrity": "sha512-MOP5pOosg7JETrVGg8OQyzmUmbyoSopT5j2HlblHsto89mPz3cmxzn1IA4UNUmnWKgeticSwfhS+Gdy25IIlBQ==",
-          "requires": {
-            "esutils": "2.0.2",
-            "lodash": "4.17.11",
-            "to-fast-properties": "2.0.0"
-          }
-        }
+        "@babel/types": "7.0.0"
       }
     },
     "@babel/helper-builder-binary-assignment-operator-visitor": {
-      "version": "7.0.0-beta.47",
-      "resolved": "https://registry.npmjs.org/@babel/helper-builder-binary-assignment-operator-visitor/-/helper-builder-binary-assignment-operator-visitor-7.0.0-beta.47.tgz",
-      "integrity": "sha512-nv8d6TcDBb1CJMQzwab/e0rqyqoP9d2AQBjr4GdSiVRpJX4aiLEiLBm2XprdEb/sVIRmmBnVxPXJaHDsS/K2fw==",
+      "version": "7.1.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-builder-binary-assignment-operator-visitor/-/helper-builder-binary-assignment-operator-visitor-7.1.0.tgz",
+      "integrity": "sha512-qNSR4jrmJ8M1VMM9tibvyRAHXQs2PmaksQF7c1CGJNipfe3D8p+wgNwgso/P2A2r2mdgBWAXljNWR0QRZAMW8w==",
       "requires": {
-        "@babel/helper-explode-assignable-expression": "7.0.0-beta.47",
-        "@babel/types": "7.0.0-beta.47"
-      },
-      "dependencies": {
-        "@babel/types": {
-          "version": "7.0.0-beta.47",
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-          "requires": {
-            "esutils": "2.0.2",
-            "lodash": "4.17.11",
-            "to-fast-properties": "2.0.0"
-          }
-        }
+        "@babel/helper-explode-assignable-expression": "7.1.0",
+        "@babel/types": "7.0.0"
       }
     },
     "@babel/helper-builder-react-jsx": {
-      "version": "7.0.0-rc.2",
-      "resolved": "https://registry.npmjs.org/@babel/helper-builder-react-jsx/-/helper-builder-react-jsx-7.0.0-rc.2.tgz",
-      "integrity": "sha512-uQGEgtdTB0XVgYpr/OJ52C/4CIPjED7XO8g8R64Am/RSVY0Ah0/H7ae6TbvW+v9eFbVZSvdm8ODb7sdEfMTCAg==",
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-builder-react-jsx/-/helper-builder-react-jsx-7.0.0.tgz",
+      "integrity": "sha512-ebJ2JM6NAKW0fQEqN8hOLxK84RbRz9OkUhGS/Xd5u56ejMfVbayJ4+LykERZCOUM6faa6Fp3SZNX3fcT16MKHw==",
       "requires": {
-        "@babel/types": "7.0.0-rc.2",
+        "@babel/types": "7.0.0",
         "esutils": "2.0.2"
       }
     },
     "@babel/helper-call-delegate": {
-      "version": "7.0.0-beta.47",
-      "resolved": "https://registry.npmjs.org/@babel/helper-call-delegate/-/helper-call-delegate-7.0.0-beta.47.tgz",
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+      "version": "7.1.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-call-delegate/-/helper-call-delegate-7.1.0.tgz",
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+        "mime-types": {
+          "version": "2.1.20",
+          "resolved": "https://registry.npmjs.org/mime-types/-/mime-types-2.1.20.tgz",
+          "integrity": "sha512-HrkrPaP9vGuWbLK1B1FfgAkbqNjIuy4eHlIYnFi7kamZyLLrGlo2mpcx0bBmNpKqBtYtAfGbodDddIgddSJC2A==",
+          "requires": {
+            "mime-db": "1.36.0"
+          }
+        }
+      }
+    },
     "typedarray": {
       "version": "0.0.6",
       "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz",
@@ -12661,6 +13355,11 @@
         "through": "2.3.8"
       }
     },
+    "underscore": {
+      "version": "1.8.3",
+      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.8.3.tgz",
+      "integrity": "sha1-Tz+1OxBuYJf8+ctBCfKl6b36UCI="
+    },
     "underscore.string": {
       "version": "3.3.4",
       "resolved": "https://registry.npmjs.org/underscore.string/-/underscore.string-3.3.4.tgz",
@@ -12872,6 +13571,11 @@
         "prepend-http": "1.0.4"
       }
     },
+    "url-set-query": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/url-set-query/-/url-set-query-1.0.0.tgz",
+      "integrity": "sha1-AW6M/Xwg7gXK/neV6JK9BwL6ozk="
+    },
     "use": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/use/-/use-3.1.1.tgz",
@@ -13091,7 +13795,7 @@
       }
     },
     "web3": {
-      "version": "github:status-im/web3.js#b1c2e2b75f6a190b320dda4be7931d3680ecb727",
+      "version": "github:status-im/web3.js#ff09ce57e9574a1c42138832a7d6bf6c2e699048",
       "requires": {
         "bignumber.js": "github:status-im/bignumber.js#cc066a0a3d6bfe0c436c9957f4ea8344bf963c89",
         "crypto-js": "3.1.8",
@@ -13100,6 +13804,32 @@
         "xmlhttprequest": "1.8.0"
       }
     },
+    "web3-utils": {
+      "version": "1.0.0-beta.36",
+      "resolved": "https://registry.npmjs.org/web3-utils/-/web3-utils-1.0.0-beta.36.tgz",
+      "integrity": "sha512-7ri74lG5fS2Th0fhYvTtiEHMB1Pmf2p7dQx1COQ3OHNI/CHNEMjzoNMEbBU6FAENrywfoFur40K4m0AOmEUq5A==",
+      "requires": {
+        "bn.js": "4.11.6",
+        "eth-lib": "0.1.27",
+        "ethjs-unit": "0.1.6",
+        "number-to-bn": "1.7.0",
+        "randomhex": "0.1.5",
+        "underscore": "1.8.3",
+        "utf8": "2.1.1"
+      },
+      "dependencies": {
+        "bn.js": {
+          "version": "4.11.6",
+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.6.tgz",
+          "integrity": "sha1-UzRK2xRhehP26N0s4okF0cC6MhU="
+        },
+        "utf8": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/utf8/-/utf8-2.1.1.tgz",
+          "integrity": "sha1-LgHbAvfY0JRPdxBPFgnrDDBM92g="
+        }
+      }
+    },
     "whatwg-fetch": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/whatwg-fetch/-/whatwg-fetch-3.0.0.tgz",
@@ -13211,6 +13941,46 @@
         "os-homedir": "1.0.2"
       }
     },
+    "xhr": {
+      "version": "2.5.0",
+      "resolved": "https://registry.npmjs.org/xhr/-/xhr-2.5.0.tgz",
+      "integrity": "sha512-4nlO/14t3BNUZRXIXfXe+3N6w3s1KoxcJUUURctd64BLRe67E4gRwp4PjywtDY72fXpZ1y6Ch0VZQRY/gMPzzQ==",
+      "requires": {
+        "global": "4.3.2",
+        "is-function": "1.0.1",
+        "parse-headers": "2.0.1",
+        "xtend": "4.0.1"
+      }
+    },
+    "xhr-request": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/xhr-request/-/xhr-request-1.1.0.tgz",
+      "integrity": "sha512-Y7qzEaR3FDtL3fP30k9wO/e+FBnBByZeybKOhASsGP30NIkRAAkKD/sCnLvgEfAIEC1rcmK7YG8f4oEnIrrWzA==",
+      "requires": {
+        "buffer-to-arraybuffer": "0.0.5",
+        "object-assign": "4.1.1",
+        "query-string": "5.1.1",
+        "simple-get": "2.8.1",
+        "timed-out": "4.0.1",
+        "url-set-query": "1.0.0",
+        "xhr": "2.5.0"
+      },
+      "dependencies": {
+        "timed-out": {
+          "version": "4.0.1",
+          "resolved": "https://registry.npmjs.org/timed-out/-/timed-out-4.0.1.tgz",
+          "integrity": "sha1-8y6srFoXW+ol1/q1Zas+2HQe9W8="
+        }
+      }
+    },
+    "xhr-request-promise": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/xhr-request-promise/-/xhr-request-promise-0.1.2.tgz",
+      "integrity": "sha1-NDxE0e53JrhkgGloLQ+EDIO0Jh0=",
+      "requires": {
+        "xhr-request": "1.1.0"
+      }
+    },
     "xhr2": {
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/xhr2/-/xhr2-0.1.4.tgz",
diff --git a/desktop_files/package.json b/desktop_files/package.json
index 2f66ef5bc1..bbd15ed23b 100644
--- a/desktop_files/package.json
+++ b/desktop_files/package.json
@@ -25,11 +25,12 @@
   "dependencies": {
     "assert": "1.4.1",
     "asyncstorage-down": "4.0.1",
-    "@babel/core": "7.0.0-rc.2",
-    "@babel/generator": "7.0.0-rc.2",
-    "@babel/helper-builder-react-jsx": "7.0.0-rc.2",
-    "@babel/plugin-transform-block-scoping": "7.0.0-rc.2",
-    "@babel/register": "7.0.0-rc.2",
+    "@babel/core": "7.0.1",
+    "@babel/generator": "7.0.0",
+    "@babel/helper-builder-react-jsx": "7.0.0",
+    "@babel/plugin-transform-block-scoping": "7.0.0",
+    "@babel/register": "7.0.0",
+    "@babel/preset-env": "7.1.0",
     "babel-preset-react-native": "5.0.2",
     "bignumber.js": "github:status-im/bignumber.js#master",
     "buffer": "3.6.0",
@@ -84,7 +85,8 @@
     "string_decoder": "0.10.31",
     "text-encoding": "^0.6.4",
     "url": "0.10.3",
-    "web3": "git+https://github.com/status-im/web3.js.git#feature/chat-api"
+    "web3": "github:status-im/web3.js#feature/shhext",
+    "web3-utils": "1.0.0-beta.36"
   },
   "devDependencies": {
     "patch-package": "^5.1.1"
diff --git a/ios/StatusIm.xcodeproj/project.pbxproj b/ios/StatusIm.xcodeproj/project.pbxproj
index e420d2a77d..2c28e11e08 100644
--- a/ios/StatusIm.xcodeproj/project.pbxproj
+++ b/ios/StatusIm.xcodeproj/project.pbxproj
@@ -1780,7 +1780,7 @@
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 			shellPath = /bin/sh;
-			shellScript = "set -o errexit\nexport NODE_BINARY=\"node --max-old-space-size=4096\"\n../node_modules/react-native/scripts/react-native-xcode.sh";
+			shellScript = "set -o errexit\nexport NODE_BINARY=\"node --max-old-space-size=8192\"\n../node_modules/react-native/scripts/react-native-xcode.sh";
 		};
 		2EAC54E16AB243C3EBBFE1BA /* [CP] Check Pods Manifest.lock */ = {
 			isa = PBXShellScriptBuildPhase;
diff --git a/mobile_files/package-lock.json b/mobile_files/package-lock.json
index 41b603c490..dfbcd1c105 100644
--- a/mobile_files/package-lock.json
+++ b/mobile_files/package-lock.json
@@ -5,11 +5,11 @@
   "requires": true,
   "dependencies": {
     "@babel/code-frame": {
-      "version": "7.0.0-beta.47",
-      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.0.0-beta.47.tgz",
-      "integrity": "sha512-W7IeG4MoVf4oUvWfHUx9VG9if3E0xSUDf1urrnNYtC2ow1dz2ptvQ6YsJfyVXDuPTFXz66jkHhzMW7a5Eld7TA==",
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.0.0.tgz",
+      "integrity": "sha512-OfC2uemaknXr87bdLUkWog7nYuliM9Ij5HUcajsVcMCpQrcLmtxRbVFTIqmcSkSeYRBFBRxs2FiUqFJDLdiebA==",
       "requires": {
-        "@babel/highlight": "7.0.0-beta.47"
+        "@babel/highlight": "7.0.0"
       }
     },
     "@babel/core": {
@@ -34,6 +34,14 @@
         "source-map": "0.5.7"
       },
       "dependencies": {
+        "@babel/code-frame": {
+          "version": "7.0.0-beta.47",
+          "resolved": "https://registry.npmjs.org/@babel/code-frame/-/code-frame-7.0.0-beta.47.tgz",
+          "integrity": "sha512-W7IeG4MoVf4oUvWfHUx9VG9if3E0xSUDf1urrnNYtC2ow1dz2ptvQ6YsJfyVXDuPTFXz66jkHhzMW7a5Eld7TA==",
+          "requires": {
+            "@babel/highlight": "7.0.0-beta.47"
+          }
+        },
         "@babel/generator": {
           "version": "7.0.0-beta.47",
           "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.0.0-beta.47.tgz",
@@ -46,6 +54,70 @@
             "trim-right": "1.0.1"
           }
         },
+        "@babel/helper-function-name": {
+          "version": "7.0.0-beta.47",
+          "resolved": "https://registry.npmjs.org/@babel/helper-function-name/-/helper-function-name-7.0.0-beta.47.tgz",
+          "integrity": "sha512-0LSvt95XCYaOrDA5K68KkTyldKXizDwBnKACdYzQszp1GdbtzmSeGwFU5Ecw86fU6bkYXtDvkFTOQwk/WQSJPw==",
+          "requires": {
+            "@babel/helper-get-function-arity": "7.0.0-beta.47",
+            "@babel/template": "7.0.0-beta.47",
+            "@babel/types": "7.0.0-beta.47"
+          }
+        },
+        "@babel/helper-get-function-arity": {
+          "version": "7.0.0-beta.47",
+          "resolved": "https://registry.npmjs.org/@babel/helper-get-function-arity/-/helper-get-function-arity-7.0.0-beta.47.tgz",
+          "integrity": "sha512-63j0i3YUW8CO//uQc3ACffJdIlYcIlysuHjMF0yzQhqKoQ/CUPv0hf3nBwdRGjiWrr3JcL6++NF4XmXdwSU+fA==",
+          "requires": {
+            "@babel/types": "7.0.0-beta.47"
+          }
+        },
+        "@babel/helper-split-export-declaration": {
+          "version": "7.0.0-beta.47",
+          "resolved": "https://registry.npmjs.org/@babel/helper-split-export-declaration/-/helper-split-export-declaration-7.0.0-beta.47.tgz",
+          "integrity": "sha512-jx8GmxryT6Qy4+24W6M6TnVL9T8bxqdyg5UKHjxBdw0Y2Sano1n0WphUS2seuOugn04W2ZQLqGc0ut8nGe/taA==",
+          "requires": {
+            "@babel/types": "7.0.0-beta.47"
+          }
+        },
+        "@babel/highlight": {
+          "version": "7.0.0-beta.47",
+          "resolved": "https://registry.npmjs.org/@babel/highlight/-/highlight-7.0.0-beta.47.tgz",
+          "integrity": "sha512-d505K3Hth1eg0b2swfEF7oFMw3J9M8ceFg0s6dhCSxOOF+07WDvJ0HKT/YbK/Jk9wn8Wyr6HIRAUPKJ9Wfv8Rg==",
+          "requires": {
+            "chalk": "2.4.1",
+            "esutils": "2.0.2",
+            "js-tokens": "3.0.2"
+          }
+        },
+        "@babel/template": {
+          "version": "7.0.0-beta.47",
+          "resolved": "https://registry.npmjs.org/@babel/template/-/template-7.0.0-beta.47.tgz",
+          "integrity": "sha512-mAzrOCLwOb4jAobHi0kTwIkoamP1Do28c6zxvrDXjYSJFZHz6KGuzMaT0AV7ZCq7M3si7QypVVMVX2bE6IsuOg==",
+          "requires": {
+            "@babel/code-frame": "7.0.0-beta.47",
+            "@babel/types": "7.0.0-beta.47",
+            "babylon": "7.0.0-beta.47",
+            "lodash": "4.17.11"
+          }
+        },
+        "@babel/traverse": {
+          "version": "7.0.0-beta.47",
+          "resolved": "https://registry.npmjs.org/@babel/traverse/-/traverse-7.0.0-beta.47.tgz",
+          "integrity": "sha512-kYGGs//OnUnei+9TTldxlgf7llprj7VUeDKtG50+g+0k1g0yZyrkEgbyFheYFdnudR8IDEHOEXVsUuY82r5Aiw==",
+          "requires": {
+            "@babel/code-frame": "7.0.0-beta.47",
+            "@babel/generator": "7.0.0-beta.47",
+            "@babel/helper-function-name": "7.0.0-beta.47",
+            "@babel/helper-split-export-declaration": "7.0.0-beta.47",
+            "@babel/types": "7.0.0-beta.47",
+            "babylon": "7.0.0-beta.47",
+            "debug": "3.2.5",
+            "globals": "11.7.0",
+            "invariant": "2.2.4",
+            "lodash": "4.17.11"
+          }
+        },
         "@babel/types": {
           "version": "7.0.0-beta.47",
           "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.0.0-beta.47.tgz",
@@ -55,15 +127,20 @@
             "lodash": "4.17.11",
             "to-fast-properties": "2.0.0"
           }
+        },
+        "js-tokens": {
+          "version": "3.0.2",
+          "resolved": "https://registry.npmjs.org/js-tokens/-/js-tokens-3.0.2.tgz",
+          "integrity": "sha1-mGbfOVECEw449/mWvOtlRDIJwls="
         }
       }
     },
     "@babel/generator": {
-      "version": "7.0.0-rc.2",
-      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.0.0-rc.2.tgz",
-      "integrity": "sha512-kD6hlprDaBy17V8qd9uXJbYC5ZYyCggieT+tiGzCwayA7oyT5ynPec3MNkWQHkLyhB7IP2n3c/Ep329jOPQY/g==",
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/generator/-/generator-7.0.0.tgz",
+      "integrity": "sha512-/BM2vupkpbZXq22l1ALO7MqXJZH2k8bKVv8Y+pABFnzWdztDB/ZLveP5At21vLz5c2YtSE6p7j2FZEsqafMz5Q==",
       "requires": {
-        "@babel/types": "7.0.0-rc.2",
+        "@babel/types": "7.0.0",
         "jsesc": "2.5.1",
         "lodash": "4.17.11",
         "source-map": "0.5.7",
@@ -71,391 +148,185 @@
       }
     },
     "@babel/helper-annotate-as-pure": {
-      "version": "7.0.0-beta.47",
-      "resolved": "https://registry.npmjs.org/@babel/helper-annotate-as-pure/-/helper-annotate-as-pure-7.0.0-beta.47.tgz",
-      "integrity": "sha512-Pjxb/PrxyKWc7jcAXlawvNAQMxxY+tSSNC5wxJstJjpO10mocmGzBOqNYjxdvVhMb3d0BEPQ8mR+D65fFpZ+TA==",
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-annotate-as-pure/-/helper-annotate-as-pure-7.0.0.tgz",
+      "integrity": "sha512-3UYcJUj9kvSLbLbUIfQTqzcy5VX7GRZ/CCDrnOaZorFFM01aXp1+GJwuFGV4NDDoAS+mOUyHcO6UD/RfqOks3Q==",
       "requires": {
-        "@babel/types": "7.0.0-beta.47"
-      },
-      "dependencies": {
-        "@babel/types": {
-          "version": "7.0.0-beta.47",
-          "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.0.0-beta.47.tgz",
-          "integrity": "sha512-MOP5pOosg7JETrVGg8OQyzmUmbyoSopT5j2HlblHsto89mPz3cmxzn1IA4UNUmnWKgeticSwfhS+Gdy25IIlBQ==",
-          "requires": {
-            "esutils": "2.0.2",
-            "lodash": "4.17.11",
-            "to-fast-properties": "2.0.0"
-          }
-        }
+        "@babel/types": "7.0.0"
       }
     },
     "@babel/helper-builder-binary-assignment-operator-visitor": {
-      "version": "7.0.0-beta.47",
-      "resolved": "https://registry.npmjs.org/@babel/helper-builder-binary-assignment-operator-visitor/-/helper-builder-binary-assignment-operator-visitor-7.0.0-beta.47.tgz",
-      "integrity": "sha512-nv8d6TcDBb1CJMQzwab/e0rqyqoP9d2AQBjr4GdSiVRpJX4aiLEiLBm2XprdEb/sVIRmmBnVxPXJaHDsS/K2fw==",
+      "version": "7.1.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-builder-binary-assignment-operator-visitor/-/helper-builder-binary-assignment-operator-visitor-7.1.0.tgz",
+      "integrity": "sha512-qNSR4jrmJ8M1VMM9tibvyRAHXQs2PmaksQF7c1CGJNipfe3D8p+wgNwgso/P2A2r2mdgBWAXljNWR0QRZAMW8w==",
       "requires": {
-        "@babel/helper-explode-assignable-expression": "7.0.0-beta.47",
-        "@babel/types": "7.0.0-beta.47"
-      },
-      "dependencies": {
-        "@babel/types": {
-          "version": "7.0.0-beta.47",
-          "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.0.0-beta.47.tgz",
-          "integrity": "sha512-MOP5pOosg7JETrVGg8OQyzmUmbyoSopT5j2HlblHsto89mPz3cmxzn1IA4UNUmnWKgeticSwfhS+Gdy25IIlBQ==",
-          "requires": {
-            "esutils": "2.0.2",
-            "lodash": "4.17.11",
-            "to-fast-properties": "2.0.0"
-          }
-        }
+        "@babel/helper-explode-assignable-expression": "7.1.0",
+        "@babel/types": "7.0.0"
       }
     },
     "@babel/helper-builder-react-jsx": {
-      "version": "7.0.0-rc.2",
-      "resolved": "https://registry.npmjs.org/@babel/helper-builder-react-jsx/-/helper-builder-react-jsx-7.0.0-rc.2.tgz",
-      "integrity": "sha512-uQGEgtdTB0XVgYpr/OJ52C/4CIPjED7XO8g8R64Am/RSVY0Ah0/H7ae6TbvW+v9eFbVZSvdm8ODb7sdEfMTCAg==",
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-builder-react-jsx/-/helper-builder-react-jsx-7.0.0.tgz",
+      "integrity": "sha512-ebJ2JM6NAKW0fQEqN8hOLxK84RbRz9OkUhGS/Xd5u56ejMfVbayJ4+LykERZCOUM6faa6Fp3SZNX3fcT16MKHw==",
       "requires": {
-        "@babel/types": "7.0.0-rc.2",
+        "@babel/types": "7.0.0",
         "esutils": "2.0.2"
       }
     },
     "@babel/helper-call-delegate": {
-      "version": "7.0.0-beta.47",
-      "resolved": "https://registry.npmjs.org/@babel/helper-call-delegate/-/helper-call-delegate-7.0.0-beta.47.tgz",
-      "integrity": "sha512-Rx9TRmCCEP0pWau9gfR6ubcbbX3nVc4ImNY143ftC70jrKdSv5rS20yz2cmCilDzhexwGZQ3PFwOLKe3C/5aEg==",
+      "version": "7.1.0",
+      "resolved": "https://registry.npmjs.org/@babel/helper-call-delegate/-/helper-call-delegate-7.1.0.tgz",
+      "integrity": "sha512-YEtYZrw3GUK6emQHKthltKNZwszBcHK58Ygcis+gVUrF4/FmTVr5CCqQNSfmvg2y+YDEANyYoaLz/SHsnusCwQ==",
       "requires": {
-        "@babel/helper-hoist-variables": "7.0.0-beta.47",
-        "@babel/traverse": "7.0.0-beta.47",
-        "@babel/types": "7.0.0-beta.47"
-      },
-      "dependencies": {
-        "@babel/types": {
-          "version": "7.0.0-beta.47",
-          "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.0.0-beta.47.tgz",
-          "integrity": "sha512-MOP5pOosg7JETrVGg8OQyzmUmbyoSopT5j2HlblHsto89mPz3cmxzn1IA4UNUmnWKgeticSwfhS+Gdy25IIlBQ==",
-          "requires": {
-            "esutils": "2.0.2",
-            "lodash": "4.17.11",
-            "to-fast-properties": "2.0.0"
-          }
-        }
+        "@babel/helper-hoist-variables": "7.0.0",
+        "@babel/traverse": "7.1.0",
+        "@babel/types": "7.0.0"
       }
     },
     "@babel/helper-define-map": {
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+      "resolved": "https://registry.npmjs.org/raw-body/-/raw-body-2.3.3.tgz",
+      "integrity": "sha512-9esiElv1BrZoI3rCDuOuKCBRbuApGGaDPQfjSflGxdy4oyzqghxu6klEkkVIvBje+FF0BX9coEv8KqW6X/7njw==",
+      "requires": {
+        "bytes": "3.0.0",
+        "http-errors": "1.6.3",
+        "iconv-lite": "0.4.23",
+        "unpipe": "1.0.0"
+      },
+      "dependencies": {
+        "iconv-lite": {
+          "version": "0.4.23",
+          "resolved": "https://registry.npmjs.org/iconv-lite/-/iconv-lite-0.4.23.tgz",
+          "integrity": "sha512-neyTUVFtahjf0mB3dZT77u+8O0QB89jFdnBkd5P1JgYPbPaia3gXXOVL2fq8VyU2gMMD7SaN7QukTB/pmXYvDA==",
+          "requires": {
+            "safer-buffer": "2.1.2"
+          }
+        }
+      }
+    },
     "rc": {
       "version": "1.2.8",
       "resolved": "https://registry.npmjs.org/rc/-/rc-1.2.8.tgz",
@@ -6833,7 +8456,7 @@
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       "version": "0.0.77",
-      "resolved": "https://registry.npmjs.org/react-native-tab-view/-/react-native-tab-view-0.0.77.tgz",
+      "resolved": "http://registry.npmjs.org/react-native-tab-view/-/react-native-tab-view-0.0.77.tgz",
       "integrity": "sha512-9vjD4Ly1Zlum1Y4g23ODpi/F3gYIUIsKWrsZO/Oh5cuX1eiB1DRVn11nY1z+j/hsQfhfyW6nDlmySyDvYQvYCA==",
       "requires": {
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@@ -6899,9 +8522,9 @@
       }
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     "react-navigation": {
-      "version": "2.16.0",
-      "resolved": "https://registry.npmjs.org/react-navigation/-/react-navigation-2.16.0.tgz",
-      "integrity": "sha512-AB+zS9bDBjD6xxRWvKnGLcMN/2gmP7+ARKb7nfwNmDjtJDswY55HaMiMUOrKYzDJi3bY45O0XHroPF9aArF3nw==",
+      "version": "2.17.0",
+      "resolved": "https://registry.npmjs.org/react-navigation/-/react-navigation-2.17.0.tgz",
+      "integrity": "sha512-OT3V5ZGA+VOFydjJg5JAo/sh94stWoyEYXOVdAz98Rw4UW3BATUG6Y/4ROMbBSlYl2PvGfc9Q1+RHEhy5Xjp8A==",
       "requires": {
         "clamp": "1.0.1",
         "create-react-context": "0.2.2",
@@ -6913,7 +8536,7 @@
         "react-native-screens": "1.0.0-alpha.12",
         "react-navigation-deprecated-tab-navigator": "1.3.0",
         "react-navigation-drawer": "0.5.0",
-        "react-navigation-stack": "0.6.0",
+        "react-navigation-stack": "0.7.0",
         "react-navigation-tabs": "0.8.2"
       },
       "dependencies": {
@@ -6944,9 +8567,9 @@
       }
     },
     "react-navigation-stack": {
-      "version": "0.6.0",
-      "resolved": "https://registry.npmjs.org/react-navigation-stack/-/react-navigation-stack-0.6.0.tgz",
-      "integrity": "sha512-6+33KKqHq+OTK5CRcj3fpXfTpfU/56aFG/WB7a/9QKThfkVTuxAJ1Z5+qZNJMH5BAJvzhqBiPNYb6uH1TcoecA=="
+      "version": "0.7.0",
+      "resolved": "https://registry.npmjs.org/react-navigation-stack/-/react-navigation-stack-0.7.0.tgz",
+      "integrity": "sha512-3Tbb/SsustBrM9R/qaI6XuOfyqYMVbwkeHFC8NbU890vB0aKZvjAtioWLZ18e/4LgbiOCmoTdp37z3gkGDyNDQ=="
     },
     "react-navigation-tabs": {
       "version": "0.8.2",
@@ -6956,7 +8579,7 @@
         "hoist-non-react-statics": "2.5.5",
         "prop-types": "15.6.2",
         "react-lifecycles-compat": "3.0.4",
-        "react-native-tab-view": "1.0.2"
+        "react-native-tab-view": "1.2.0"
       },
       "dependencies": {
         "prop-types": {
@@ -6969,9 +8592,9 @@
           }
         },
         "react-native-tab-view": {
-          "version": "1.0.2",
-          "resolved": "https://registry.npmjs.org/react-native-tab-view/-/react-native-tab-view-1.0.2.tgz",
-          "integrity": "sha512-x8I43V1X7/AyMnIwnqJGMU54LqQRlV6vJ9irbls9asA/axdHIdxagPIV6Jx1ttFe/bPKhFwXL+lRYdYxGyUlWg==",
+          "version": "1.2.0",
+          "resolved": "https://registry.npmjs.org/react-native-tab-view/-/react-native-tab-view-1.2.0.tgz",
+          "integrity": "sha512-lpiWi3dog86Fu/W60DU12RKrFv3XuTv0lHMC56t2jlDqxLfVzG9ufV7li6Afl2S2ZicNU1Bob8WPgxVZc8egAA==",
           "requires": {
             "prop-types": "15.6.2"
           }
@@ -7109,9 +8732,9 @@
       "integrity": "sha512-MguG95oij0fC3QV3URf4V2SDYGJhJnJGqvIIgdECeODCT98wSWDAJ94SSuVpYQUoTcGUIL6L4yNB7j1DFFHSBg=="
     },
     "regenerator-transform": {
-      "version": "0.12.4",
-      "resolved": "https://registry.npmjs.org/regenerator-transform/-/regenerator-transform-0.12.4.tgz",
-      "integrity": "sha512-p2I0fY+TbSLD2/VFTFb/ypEHxs3e3AjU0DzttdPqk2bSmDhfSh5E54b86Yc6XhUa5KykK1tgbvZ4Nr82oCJWkQ==",
+      "version": "0.13.3",
+      "resolved": "https://registry.npmjs.org/regenerator-transform/-/regenerator-transform-0.13.3.tgz",
+      "integrity": "sha512-5ipTrZFSq5vU2YoGoww4uaRVAK4wyYC4TSICibbfEPOruUu8FFP7ErV0BjmbIOEpn3O/k9na9UEdYR/3m7N6uA==",
       "requires": {
         "private": "0.1.8"
       }
@@ -7759,6 +9382,18 @@
         "send": "0.16.2"
       }
     },
+    "servify": {
+      "version": "0.1.12",
+      "resolved": "https://registry.npmjs.org/servify/-/servify-0.1.12.tgz",
+      "integrity": "sha512-/xE6GvsKKqyo1BAY+KxOWXcLpPsUUyji7Qg3bVD7hh1eRze5bR1uYiuDA/k3Gof1s9BTzQZEJK8sNcNGFIzeWw==",
+      "requires": {
+        "body-parser": "1.18.3",
+        "cors": "2.8.4",
+        "express": "4.16.3",
+        "request": "2.88.0",
+        "xhr": "2.5.0"
+      }
+    },
     "set-blocking": {
       "version": "2.0.0",
       "resolved": "https://registry.npmjs.org/set-blocking/-/set-blocking-2.0.0.tgz",
@@ -7804,6 +9439,21 @@
         "safe-buffer": "5.1.2"
       }
     },
+    "sha3": {
+      "version": "1.2.2",
+      "resolved": "https://registry.npmjs.org/sha3/-/sha3-1.2.2.tgz",
+      "integrity": "sha1-pmxQmN5MJbyIM27ItIF9AFvKe6k=",
+      "requires": {
+        "nan": "2.10.0"
+      },
+      "dependencies": {
+        "nan": {
+          "version": "2.10.0",
+          "resolved": "https://registry.npmjs.org/nan/-/nan-2.10.0.tgz",
+          "integrity": "sha512-bAdJv7fBLhWC+/Bls0Oza+mvTaNQtP+1RyhhhvD95pgUJz6XM5IzgmxOkItJ9tkoCiplvAnXI1tNmmUD/eScyA=="
+        }
+      }
+    },
     "shebang-command": {
       "version": "1.2.0",
       "resolved": "https://registry.npmjs.org/shebang-command/-/shebang-command-1.2.0.tgz",
@@ -7838,6 +9488,21 @@
       "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.2.tgz",
       "integrity": "sha1-tf3AjxKH6hF4Yo5BXiUTK3NkbG0="
     },
+    "simple-concat": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/simple-concat/-/simple-concat-1.0.0.tgz",
+      "integrity": "sha1-c0TLuLbib7J9ZrL8hvn21Zl1IcY="
+    },
+    "simple-get": {
+      "version": "2.8.1",
+      "resolved": "https://registry.npmjs.org/simple-get/-/simple-get-2.8.1.tgz",
+      "integrity": "sha512-lSSHRSw3mQNUGPAYRqo7xy9dhKmxFXIjLjp4KHpf99GEH2VH7C3AM+Qfx6du6jhfUi6Vm7XnbEVEf7Wb6N8jRw==",
+      "requires": {
+        "decompress-response": "3.3.0",
+        "once": "1.4.0",
+        "simple-concat": "1.0.0"
+      }
+    },
     "simple-plist": {
       "version": "0.2.1",
       "resolved": "https://registry.npmjs.org/simple-plist/-/simple-plist-0.2.1.tgz",
@@ -8038,11 +9703,19 @@
       }
     },
     "source-map-support": {
-      "version": "0.4.18",
-      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.4.18.tgz",
-      "integrity": "sha512-try0/JqxPLF9nOjvSta7tVondkP5dwgyLDjVoyMDlmjugT2lRZ1OfsrYTkCd2hkDnJTKRbO/Rl3orm8vlsUzbA==",
+      "version": "0.5.9",
+      "resolved": "https://registry.npmjs.org/source-map-support/-/source-map-support-0.5.9.tgz",
+      "integrity": "sha512-gR6Rw4MvUlYy83vP0vxoVNzM6t8MUXqNuRsuBmBHQDu1Fh6X015FrLdgoDKcNdkwGubozq0P4N0Q37UyFVr1EA==",
       "requires": {
-        "source-map": "0.5.7"
+        "buffer-from": "1.1.1",
+        "source-map": "0.6.1"
+      },
+      "dependencies": {
+        "source-map": {
+          "version": "0.6.1",
+          "resolved": "https://registry.npmjs.org/source-map/-/source-map-0.6.1.tgz",
+          "integrity": "sha512-UjgapumWlbMhkBgzT7Ykc5YXUT46F0iKu8SGXq0bcwP5dz/h0Plj6enJqjz1Zbq2l5WaqYnrVbwWOWMyF3F47g=="
+        }
       }
     },
     "source-map-url": {
@@ -8225,6 +9898,14 @@
       "resolved": "https://registry.npmjs.org/strip-eof/-/strip-eof-1.0.0.tgz",
       "integrity": "sha1-u0P/VZim6wXYm1n80SnJgzE2Br8="
     },
+    "strip-hex-prefix": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/strip-hex-prefix/-/strip-hex-prefix-1.0.0.tgz",
+      "integrity": "sha1-DF8VX+8RUTczd96du1iNoFUA428=",
+      "requires": {
+        "is-hex-prefixed": "1.0.0"
+      }
+    },
     "strip-json-comments": {
       "version": "2.0.1",
       "resolved": "https://registry.npmjs.org/strip-json-comments/-/strip-json-comments-2.0.1.tgz",
@@ -8383,6 +10064,11 @@
       "resolved": "https://registry.npmjs.org/time-stamp/-/time-stamp-1.1.0.tgz",
       "integrity": "sha1-dkpaEa9QVhkhsTPztE5hhofg9cM="
     },
+    "timed-out": {
+      "version": "4.0.1",
+      "resolved": "https://registry.npmjs.org/timed-out/-/timed-out-4.0.1.tgz",
+      "integrity": "sha1-8y6srFoXW+ol1/q1Zas+2HQe9W8="
+    },
     "tiny-queue": {
       "version": "0.2.0",
       "resolved": "https://registry.npmjs.org/tiny-queue/-/tiny-queue-0.2.0.tgz",
@@ -8495,6 +10181,11 @@
         "punycode": "1.4.1"
       }
     },
+    "trim": {
+      "version": "0.0.1",
+      "resolved": "https://registry.npmjs.org/trim/-/trim-0.0.1.tgz",
+      "integrity": "sha1-WFhUf2spB1fulczMZm+1AITEYN0="
+    },
     "trim-right": {
       "version": "1.0.1",
       "resolved": "https://registry.npmjs.org/trim-right/-/trim-right-1.0.1.tgz",
@@ -8514,6 +10205,15 @@
       "integrity": "sha1-WuaBd/GS1EViadEIr6k/+HQ/T2Q=",
       "optional": true
     },
+    "type-is": {
+      "version": "1.6.16",
+      "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.16.tgz",
+      "integrity": "sha512-HRkVv/5qY2G6I8iab9cI7v1bOIdhm94dVjQCPFElW9W+3GeDOSHmy2EBYe4VTApuzolPcmgFTN3ftVJRKR2J9Q==",
+      "requires": {
+        "media-typer": "0.3.0",
+        "mime-types": "2.1.20"
+      }
+    },
     "typedarray": {
       "version": "0.0.6",
       "resolved": "https://registry.npmjs.org/typedarray/-/typedarray-0.0.6.tgz",
@@ -8564,6 +10264,11 @@
         "through": "2.3.8"
       }
     },
+    "underscore": {
+      "version": "1.8.3",
+      "resolved": "https://registry.npmjs.org/underscore/-/underscore-1.8.3.tgz",
+      "integrity": "sha1-Tz+1OxBuYJf8+ctBCfKl6b36UCI="
+    },
     "unicode-canonical-property-names-ecmascript": {
       "version": "1.0.4",
       "resolved": "https://registry.npmjs.org/unicode-canonical-property-names-ecmascript/-/unicode-canonical-property-names-ecmascript-1.0.4.tgz",
@@ -8706,6 +10411,11 @@
         "requires-port": "1.0.0"
       }
     },
+    "url-set-query": {
+      "version": "1.0.0",
+      "resolved": "https://registry.npmjs.org/url-set-query/-/url-set-query-1.0.0.tgz",
+      "integrity": "sha1-AW6M/Xwg7gXK/neV6JK9BwL6ozk="
+    },
     "use": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/use/-/use-3.1.1.tgz",
@@ -8795,7 +10505,7 @@
       }
     },
     "web3": {
-      "version": "git+https://github.com/status-im/web3.js.git#b1c2e2b75f6a190b320dda4be7931d3680ecb727",
+      "version": "git+https://github.com/status-im/web3.js.git#ff09ce57e9574a1c42138832a7d6bf6c2e699048",
       "requires": {
         "bignumber.js": "github:status-im/bignumber.js#cc066a0a3d6bfe0c436c9957f4ea8344bf963c89",
         "crypto-js": "3.1.8",
@@ -8809,6 +10519,32 @@
         }
       }
     },
+    "web3-utils": {
+      "version": "1.0.0-beta.36",
+      "resolved": "https://registry.npmjs.org/web3-utils/-/web3-utils-1.0.0-beta.36.tgz",
+      "integrity": "sha512-7ri74lG5fS2Th0fhYvTtiEHMB1Pmf2p7dQx1COQ3OHNI/CHNEMjzoNMEbBU6FAENrywfoFur40K4m0AOmEUq5A==",
+      "requires": {
+        "bn.js": "4.11.6",
+        "eth-lib": "0.1.27",
+        "ethjs-unit": "0.1.6",
+        "number-to-bn": "1.7.0",
+        "randomhex": "0.1.5",
+        "underscore": "1.8.3",
+        "utf8": "2.1.1"
+      },
+      "dependencies": {
+        "bn.js": {
+          "version": "4.11.6",
+          "resolved": "https://registry.npmjs.org/bn.js/-/bn.js-4.11.6.tgz",
+          "integrity": "sha1-UzRK2xRhehP26N0s4okF0cC6MhU="
+        },
+        "utf8": {
+          "version": "2.1.1",
+          "resolved": "https://registry.npmjs.org/utf8/-/utf8-2.1.1.tgz",
+          "integrity": "sha1-LgHbAvfY0JRPdxBPFgnrDDBM92g="
+        }
+      }
+    },
     "whatwg-fetch": {
       "version": "3.0.0",
       "resolved": "https://registry.npmjs.org/whatwg-fetch/-/whatwg-fetch-3.0.0.tgz",
@@ -8903,6 +10639,56 @@
         "uuid": "3.0.1"
       }
     },
+    "xhr": {
+      "version": "2.5.0",
+      "resolved": "https://registry.npmjs.org/xhr/-/xhr-2.5.0.tgz",
+      "integrity": "sha512-4nlO/14t3BNUZRXIXfXe+3N6w3s1KoxcJUUURctd64BLRe67E4gRwp4PjywtDY72fXpZ1y6Ch0VZQRY/gMPzzQ==",
+      "requires": {
+        "global": "4.3.2",
+        "is-function": "1.0.1",
+        "parse-headers": "2.0.1",
+        "xtend": "4.0.1"
+      }
+    },
+    "xhr-request": {
+      "version": "1.1.0",
+      "resolved": "https://registry.npmjs.org/xhr-request/-/xhr-request-1.1.0.tgz",
+      "integrity": "sha512-Y7qzEaR3FDtL3fP30k9wO/e+FBnBByZeybKOhASsGP30NIkRAAkKD/sCnLvgEfAIEC1rcmK7YG8f4oEnIrrWzA==",
+      "requires": {
+        "buffer-to-arraybuffer": "0.0.5",
+        "object-assign": "4.1.1",
+        "query-string": "5.1.1",
+        "simple-get": "2.8.1",
+        "timed-out": "4.0.1",
+        "url-set-query": "1.0.0",
+        "xhr": "2.5.0"
+      },
+      "dependencies": {
+        "query-string": {
+          "version": "5.1.1",
+          "resolved": "https://registry.npmjs.org/query-string/-/query-string-5.1.1.tgz",
+          "integrity": "sha512-gjWOsm2SoGlgLEdAGt7a6slVOk9mGiXmPFMqrEhLQ68rhQuBnpfs3+EmlvqKyxnCo9/PPlF+9MtY02S1aFg+Jw==",
+          "requires": {
+            "decode-uri-component": "0.2.0",
+            "object-assign": "4.1.1",
+            "strict-uri-encode": "1.1.0"
+          }
+        },
+        "strict-uri-encode": {
+          "version": "1.1.0",
+          "resolved": "https://registry.npmjs.org/strict-uri-encode/-/strict-uri-encode-1.1.0.tgz",
+          "integrity": "sha1-J5siXfHVgrH1TmWt3UNS4Y+qBxM="
+        }
+      }
+    },
+    "xhr-request-promise": {
+      "version": "0.1.2",
+      "resolved": "https://registry.npmjs.org/xhr-request-promise/-/xhr-request-promise-0.1.2.tgz",
+      "integrity": "sha1-NDxE0e53JrhkgGloLQ+EDIO0Jh0=",
+      "requires": {
+        "xhr-request": "1.1.0"
+      }
+    },
     "xhr2": {
       "version": "0.1.4",
       "resolved": "https://registry.npmjs.org/xhr2/-/xhr2-0.1.4.tgz",
diff --git a/mobile_files/package.json b/mobile_files/package.json
index 46e1b4a89e..0d3e39a269 100644
--- a/mobile_files/package.json
+++ b/mobile_files/package.json
@@ -6,10 +6,11 @@
     "start": "node node_modules/react-native/local-cli/cli.js start"
   },
   "dependencies": {
-    "@babel/generator": "7.0.0-rc.2",
-    "@babel/helper-builder-react-jsx": "7.0.0-rc.2",
-    "@babel/plugin-transform-block-scoping": "7.0.0-rc.2",
-    "@babel/register": "7.0.0-rc.2",
+    "@babel/generator": "7.0.0",
+    "@babel/helper-builder-react-jsx": "7.0.0",
+    "@babel/plugin-transform-block-scoping": "7.0.0",
+    "@babel/register": "7.0.0",
+    "@babel/preset-env": "7.1.0",
     "@tradle/react-native-http": "2.0.1",
     "assert": "1.4.1",
     "asyncstorage-down": "4.0.1",
@@ -67,6 +68,7 @@
     "string_decoder": "0.10.31",
     "text-encoding": "^0.6.4",
     "url": "0.10.3",
-    "web3": "git+https://github.com/status-im/web3.js.git#feature/chat-api"
+    "web3": "https://github.com/status-im/web3.js.git#feature/shhext",
+    "web3-utils": "1.0.0-beta.36"
   }
 }
diff --git a/src/status_im/js_dependencies.cljs b/src/status_im/js_dependencies.cljs
index e5a190e85e..0c21076737 100644
--- a/src/status_im/js_dependencies.cljs
+++ b/src/status_im/js_dependencies.cljs
@@ -8,3 +8,4 @@
 (def Web3                (js/require "web3"))
 (def text-encoding       (js/require "text-encoding"))
 (def js-sha3             (js/require "js-sha3"))
+(def web3-utils          (js/require "web3-utils"))
diff --git a/src/status_im/utils/ethereum/abi_spec.cljs b/src/status_im/utils/ethereum/abi_spec.cljs
new file mode 100644
index 0000000000..31b8792505
--- /dev/null
+++ b/src/status_im/utils/ethereum/abi_spec.cljs
@@ -0,0 +1,269 @@
+(ns status-im.utils.ethereum.abi-spec
+  (:require [cljs.spec.alpha :as spec]
+            [clojure.string :as string]
+            [status-im.js-dependencies :as dependencies]))
+
+;; Utility functions for encoding
+
+(def utils dependencies/web3-utils)
+
+(defn right-pad [x]
+  (let [len (count x)
+        to-pad (- 64 (mod len 64))]
+    (if (= 64 to-pad)
+      x
+      (.rightPad utils x (+ len to-pad)))))
+
+(defn left-pad [x]
+  (let [len (count x)
+        to-pad (- 64 (mod len 64))]
+    (if (= 64 to-pad)
+      x
+      (.leftPad utils x (+ len to-pad)))))
+
+(defn to-two-complement [x]
+  (subs (.toTwosComplement utils x) 2))
+
+(defn from-utf8 [x]
+  (subs (.fromUtf8 utils x) 2))
+
+(defn bytes-to-hex [x]
+  (subs (.bytesToHex utils x) 2))
+
+(defn number-to-hex [x]
+  (subs (.numberToHex utils x) 2))
+
+(defn sha3 [s]
+  (.sha3 utils (str s)))
+
+(defn is-hex? [value]
+  (string/starts-with? value "0x"))
+
+;; Encoder for parsed abi spec
+
+(defmulti enc :type)
+
+;; bool: as in the uint8 case, where 1 is used for true and 0 for false
+(defmethod enc :bool
+  [{:keys [value]}]
+  (left-pad (if value "1" "0")))
+
+;; int<M>: enc(X) is the big-endian two’s complement encoding of X, padded on the
+;; higher-order (left) side with 0xff for negative X and with zero bytes for
+;; positive X such that the length is 32 bytes.
+(defmethod enc :int
+  [{:keys [value]
+    :or {size 256}}]
+  (to-two-complement value))
+
+;; uint<M>: enc(X) is the big-endian encoding of X, padded on the
+;; higher-order (left) side with zero-bytes such that the length is 32 bytes.
+(defmethod enc :uint
+  [{:keys [value]
+    :or {size 256}}]
+  (left-pad (number-to-hex value)))
+
+;; address: as in the uint160 case
+(defmethod enc :address
+  [{:keys [value]}]
+  (right-pad value))
+
+;; bytes, of length k (which is assumed to be of type uint256):
+;; enc(X) = enc(k) pad_right(X), i.e. the number of bytes is encoded as a
+;; uint256 followed by the actual value of X as a byte sequence,
+;; followed by the minimum number of zero-bytes such that len(enc(X))
+;; is a multiple of 32.
+;; bytes<M>: enc(X) is the sequence of bytes in X padded with trailing
+;; zero-bytes to a length of 32 bytes.
+(defmethod enc :bytes
+  [{:keys [value size dynamic?]
+    :or {size 256}}]
+  ;; in the exemples of the abi specifications strings are passed for
+  ;; bytes parameters, in our ens resolver we pass encoded bytes directly
+  ;; for namehash, this handles both cases by checking if the value is already
+  ;; hex
+  (let [encoded-value? (is-hex? value)
+        encoded-value  (if encoded-value?
+                         (subs value 2)
+                         (from-utf8 value))]
+    (str (when dynamic? (enc {:type :int :value (if encoded-value?
+                                                  (count encoded-value)
+                                                  (/ (count encoded-value) 2))}))
+         (right-pad encoded-value))))
+
+;; string: enc(X) = enc(enc_utf8(X)), i.e. X is utf-8 encoded and this
+;; value is interpreted as of bytes type and encoded further.
+;; Note that the length used in this subsequent encoding is the number
+;; of bytes of the utf-8 encoded string, not its number of characters.
+(defmethod enc :string
+  [{:keys [value dynamic?]}]
+  (enc {:type :bytes :value value :dynamic? dynamic?}))
+
+;; fixed<M>x<N>: enc(X) is enc(X * 10**N) where X * 10**N is
+;; interpreted as a int256.
+(defmethod enc :fixed
+  [{:keys [value size power]
+    :or {size 128
+         power 18}}]
+  (enc {:type  :int
+        :value (* value (Math/pow 10 power))}))
+
+;; ufixed: as in the ufixed128x18 case
+(defmethod enc :ufixed
+  [{:keys [value size power]
+    :or {size 128
+         power 18}}]
+  (enc {:type  :uint
+        :value (* value (Math/pow 10 power))}))
+
+;; T[k] for any T and k:
+;; enc(X) = enc((X[0], ..., X[k-1]))
+;; i.e. it is encoded as if it were a tuple with k elements of the same type.
+
+;; T[] where X has k elements (k is assumed to be of type uint256):
+;; enc(X) = enc(k) enc([X[0], ..., X[k-1]])
+;; i.e. it is encoded as if it were an array of static size k,
+;; prefixed with the number of elements.
+(defmethod enc :array
+  [{:keys [value dynamic? array-of] :as x}]
+  (str (when dynamic?
+         (enc {:type :int
+               :value (count value)}))
+       (enc {:type :tuple
+             :value (map #(assoc array-of :value %)
+                         value)})))
+
+;; (T1,...,Tk) for k >= 0 and any types T1, …, Tk
+;; enc(X) = head(X(1)) ... head(X(k)) tail(X(1)) ... tail(X(k))
+;; where X = (X(1), ..., X(k))
+
+;; for Ti being static type:
+;; head(X(i)) = enc(X(i))
+;; tail(X(i)) = "" (the empty string)
+
+;; for dynamic types:
+;; head(X(i)) = enc(len(head(X(1)) ... head(X(k))
+;;                      tail(X(1)) ... tail(X(i-1)) ))
+;; tail(X(i)) = enc(X(i))
+
+;; Note that in the dynamic case, head(X(i)) is well-defined since
+;; the lengths of the head parts only depend on the types and not
+;; the values. Its value is the offset of the beginning of tail(X(i))
+;; relative to the start of enc(X).
+(defmethod enc :tuple
+  [{:keys [value]}]
+  (let [[len x] (reduce
+                 (fn [[len acc] {:keys [type value] :as x}]
+                   (let [enc-x (enc x)]
+                     (if (:dynamic? x)
+                       [(+ len 32)
+                        (conj acc (assoc x :tail enc-x))]
+                       [(+ len (/ (count enc-x) 2))
+                        (conj acc (assoc x :head enc-x))])))
+                 [0 []]
+                 value)
+        [_ heads tails] (reduce (fn [[len heads tails] {:keys [head tail] :as x}]
+                                  (if tail
+                                    [(+ len (/ (count tail) 2))
+                                     (conj heads (enc {:type :int :value len}))
+                                     (conj tails tail)]
+                                    [len
+                                     (conj heads head)
+                                     tails]))
+                                [len [] []]
+                                x)]
+    (apply str (concat heads tails))))
+
+;;
+;; Parser for method signatures
+;;
+
+(spec/def ::params (spec/* (spec/cat ::param ::param
+                                     ::separator (spec/? ::comma))))
+
+(spec/def ::param (spec/cat ::type ::string
+                            ::size (spec/? ::number)
+                            ::x (spec/? ::x)
+                            ::power (spec/? ::number)
+                            ::array (spec/* ::array)))
+
+(spec/def ::array (spec/cat ::open-bracket ::open-bracket
+                            ::size (spec/? ::number)
+                            ::close-bracket ::close-bracket))
+
+(spec/def ::x #{\x})
+
+(spec/def ::open-bracket #{\[})
+
+(spec/def ::close-bracket #{\]})
+
+(spec/def ::comma #{\,})
+
+(spec/def ::number int?)
+
+(spec/def ::string string?)
+
+(defn- single-char [code]
+  (if-let [m (#{\, \[ \] \x} (first code))]
+    [1 m]))
+
+(defn- number [code]
+  (if-let [m (re-find #"^[0-9]+" code)]
+    [(count m) (js/parseInt m)]))
+
+(defn- string [s]
+  (if-let [m (re-find #"^[a-z]+" s)]
+    [(count m) m]))
+
+(defn tokenise [code]
+  (if (seq code)
+    (if-let [[len token] (or (string code)
+                             (single-char code)
+                             (number code))]
+      (cons token (tokenise (subs code len)))
+      (throw (ex-info "Unexpected token" {:code code})))))
+
+;; Definition: The following types are called “dynamic”:
+;; - bytes
+;; - string
+;; - T[] for any T
+;; - T[k] for any dynamic T and any k >= 0
+;; - (T1,...,Tk) if Ti is dynamic for some 1 <= i <= k
+(defn parse-param
+  "Takes a parsed parameter and returns a parameter that can
+  be encoded by associng the :dynamic? key for dynamic parameters
+  and recursively defining arrays"
+  [{::keys [type size array power] :as param}]
+  (if array
+    (let [{::keys [size]} (last array)]
+      {:type     :array
+       :dynamic? (nil? size)
+       :array-of (parse-param (update param ::array butlast))})
+    (let [type  (keyword type)
+          param {:type     type
+                 :dynamic? (or (= type :string)
+                               (and (= type :bytes)
+                                    (nil? size)))
+                 :size     size}]
+      (if power
+        (assoc param :power power)
+        param))))
+
+(defn parse-params [method-signature]
+  (let [tokens (tokenise (second (re-find #"\((.*)\)" method-signature)))
+        params (spec/conform ::params tokens)]
+    (if (spec/invalid? params)
+      (spec/explain-data ::params tokens)
+      (map #(parse-param (::param %))
+           params))))
+
+(defn signature->method-id [signature]
+  (apply str (take 10 (sha3 signature))))
+
+(defn encode [method params]
+  (let [method-id (signature->method-id method)]
+    (let [params (map #(assoc %1 :value %2)
+                      (parse-params method)
+                      params)]
+      (str method-id (enc {:type  :tuple
+                           :value params})))))
diff --git a/test/cljs/status_im/test/runner.cljs b/test/cljs/status_im/test/runner.cljs
index 097d75d97e..09dbf81773 100644
--- a/test/cljs/status_im/test/runner.cljs
+++ b/test/cljs/status_im/test/runner.cljs
@@ -37,6 +37,7 @@
             [status-im.test.utils.clocks]
             [status-im.test.utils.ethereum.eip681]
             [status-im.test.utils.ethereum.core]
+            [status-im.test.utils.ethereum.abi-spec]
             [status-im.test.utils.ethereum.ens]
             [status-im.test.utils.ethereum.mnemonic]
             [status-im.test.utils.random]
@@ -104,6 +105,7 @@
  'status-im.test.utils.ethereum.eip681
  'status-im.test.utils.ethereum.core
  'status-im.test.utils.ethereum.mnemonic
+ 'status-im.test.utils.ethereum.abi-spec
  'status-im.test.utils.ethereum.ens
  'status-im.test.utils.random
  'status-im.test.utils.gfycat.core
diff --git a/test/cljs/status_im/test/utils/ethereum/abi_spec.cljs b/test/cljs/status_im/test/utils/ethereum/abi_spec.cljs
new file mode 100644
index 0000000000..c20f4f9eba
--- /dev/null
+++ b/test/cljs/status_im/test/utils/ethereum/abi_spec.cljs
@@ -0,0 +1,19 @@
+(ns status-im.test.utils.ethereum.abi-spec
+  (:require [cljs.test :refer-macros [deftest is testing]]
+            [status-im.utils.ethereum.abi-spec :as abi-spec]))
+
+(deftest test-encode
+  (is (= (abi-spec/encode "baz(uint32,bool)" [69 true])
+         "0xcdcd77c000000000000000000000000000000000000000000000000000000000000000450000000000000000000000000000000000000000000000000000000000000001"))
+
+  (is (= (abi-spec/encode "bar(bytes3[2])" [["abc" "def"]])
+         "0xfce353f661626300000000000000000000000000000000000000000000000000000000006465660000000000000000000000000000000000000000000000000000000000"))
+
+  (is (= (abi-spec/encode "sam(bytes,bool,uint256[])" ["dave" true [1 2 3]])
+         "0xa5643bf20000000000000000000000000000000000000000000000000000000000000060000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000000464617665000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000003"))
+
+  (is (= (abi-spec/encode "f(uint256,uint32[],bytes10,bytes)" [0x123 [0x456 0x789] "1234567890" "Hello, world!"])
+         "0x8be6524600000000000000000000000000000000000000000000000000000000000001230000000000000000000000000000000000000000000000000000000000000080313233343536373839300000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000e0000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000004560000000000000000000000000000000000000000000000000000000000000789000000000000000000000000000000000000000000000000000000000000000d48656c6c6f2c20776f726c642100000000000000000000000000000000000000"))
+
+  (is (= (abi-spec/encode "g(uint[][],string[])" [[[1 2] [3]] ["one" "two" "three"]])
+         "0xad6a3446000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000001400000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000004000000000000000000000000000000000000000000000000000000000000000a0000000000000000000000000000000000000000000000000000000000000000200000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000002000000000000000000000000000000000000000000000000000000000000000100000000000000000000000000000000000000000000000000000000000000030000000000000000000000000000000000000000000000000000000000000003000000000000000000000000000000000000000000000000000000000000006000000000000000000000000000000000000000000000000000000000000000a000000000000000000000000000000000000000000000000000000000000000e000000000000000000000000000000000000000000000000000000000000000036f6e650000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000374776f000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000057468726565000000000000000000000000000000000000000000000000000000")))