diff --git a/package.json b/package.json
index 023ab771..e1518b91 100644
--- a/package.json
+++ b/package.json
@@ -135,7 +135,7 @@
     "collectCoverageFrom": [
       "src/**/*.{js,jsx}"
     ],
-    "setupTestFrameworkScriptFile": "<rootDir>/config/jest/jest.setup.js",
+    "setupFilesAfterEnv": ["<rootDir>/config/jest/jest.setup.js"],
     "setupFiles": [
       "<rootDir>/config/webpack.config.test.js",
       "<rootDir>/config/polyfills.js",
diff --git a/src/logic/contracts/safeContracts.js b/src/logic/contracts/safeContracts.js
index b58d905b..c1116a91 100644
--- a/src/logic/contracts/safeContracts.js
+++ b/src/logic/contracts/safeContracts.js
@@ -2,7 +2,6 @@
 import contract from 'truffle-contract'
 import { ensureOnce } from '~/utils/singleton'
 import { getWeb3 } from '~/logic/wallets/getWeb3'
-import { promisify } from '~/utils/promisify'
 import GnosisSafeSol from '#/GnosisSafe.json'
 import ProxyFactorySol from '#/ProxyFactory.json'
 import { calculateGasOf, calculateGasPrice } from '~/logic/wallets/ethTransactions'
@@ -42,7 +41,7 @@ const instanciateMasterCopies = async () => {
 // ONLY USED IN TEST ENVIRONMENT
 const createMasterCopies = async () => {
   const web3 = getWeb3()
-  const accounts = await promisify(cb => web3.eth.getAccounts(cb))
+  const accounts = await web3.eth.getAccounts()
   const userAccount = accounts[0]
 
   const ProxyFactory = getCreateProxyFactoryContract(web3)
diff --git a/src/logic/safe/safeBlockchainOperations.js b/src/logic/safe/safeBlockchainOperations.js
index 2f767482..498955bc 100644
--- a/src/logic/safe/safeBlockchainOperations.js
+++ b/src/logic/safe/safeBlockchainOperations.js
@@ -23,8 +23,17 @@ export const approveTransaction = async (
     // return executeTransaction(safeAddress, to, valueInWei, data, operation, nonce, sender)
     const safe = await getSafeEthereumInstance(safeAddress)
     const txGasEstimate = await generateTxGasEstimateFrom(safe, safeAddress, data, to, valueInWei, operation)
-    const signature =
-      await generateMetamaskSignature(safe, safeAddress, sender, to, valueInWei, nonce, data, operation, txGasEstimate)
+    const signature = await generateMetamaskSignature(
+      safe,
+      safeAddress,
+      sender,
+      to,
+      valueInWei,
+      nonce,
+      data,
+      operation,
+      txGasEstimate,
+    )
     storeSignature(safeAddress, nonce, signature)
 
     return undefined
@@ -33,7 +42,7 @@ export const approveTransaction = async (
   const gnosisSafe = await getSafeEthereumInstance(safeAddress)
   const contractTxHash = await gnosisSafe.getTransactionHash(to, valueInWei, data, operation, 0, 0, 0, 0, 0, nonce)
 
-  const approveData = gnosisSafe.contract.approveHash.getData(contractTxHash)
+  const approveData = gnosisSafe.contract.methods.approveHash(contractTxHash).encodeABI()
   const gas = await calculateGasOf(approveData, sender, safeAddress)
   const txReceipt = await gnosisSafe.approveHash(contractTxHash, { from: sender, gas, gasPrice })
 
@@ -60,16 +69,35 @@ export const executeTransaction = async (
   if (signaturesViaMetamask()) {
     const safe = await getSafeEthereumInstance(safeAddress)
     const txGasEstimate = await generateTxGasEstimateFrom(safe, safeAddress, data, to, valueInWei, operation)
-    const signature =
-      await generateMetamaskSignature(safe, safeAddress, sender, to, valueInWei, nonce, data, operation, txGasEstimate)
+    const signature = await generateMetamaskSignature(
+      safe,
+      safeAddress,
+      sender,
+      to,
+      valueInWei,
+      nonce,
+      data,
+      operation,
+      txGasEstimate,
+    )
     storeSignature(safeAddress, nonce, signature)
 
     const sigs = getSignaturesFrom(safeAddress, nonce)
     const threshold = await safe.getThreshold()
-    const gas =
-      await estimateDataGas(safe, to, valueInWei, data, operation, txGasEstimate, 0, nonce, Number(threshold), 0)
+    const gas = await estimateDataGas(
+      safe,
+      to,
+      valueInWei,
+      data,
+      operation,
+      txGasEstimate,
+      0,
+      nonce,
+      Number(threshold),
+      0,
+    )
     const numOwners = await safe.getOwners()
-    const gasIncludingRemovingStoreUpfront = gas + txGasEstimate + (numOwners.length * 15000)
+    const gasIncludingRemovingStoreUpfront = gas + txGasEstimate + numOwners.length * 15000
 
     const txReceipt = await safe.execTransaction(
       to,
@@ -94,24 +122,17 @@ export const executeTransaction = async (
 
   const gnosisSafe = await getSafeEthereumInstance(safeAddress)
   const signatures = buildSignaturesFrom(ownersWhoHasSigned, sender)
-  const txExecutionData =
-    gnosisSafe.contract.execTransaction.getData(to, valueInWei, data, operation, 0, 0, 0, 0, 0, signatures)
+  const txExecutionData = gnosisSafe.contract.methods
+    .execTransaction(to, valueInWei, data, operation, 0, 0, 0, 0, 0, signatures)
+    .encodeABI()
   const gas = await calculateGasOf(txExecutionData, sender, safeAddress)
   const numOwners = await gnosisSafe.getOwners()
-  const gasIncludingRemovingStoreUpfront = gas + (numOwners.length * 15000)
-  const txReceipt = await gnosisSafe.execTransaction(
-    to,
-    valueInWei,
-    data,
-    operation,
-    0,
-    0,
-    0,
-    0,
-    0,
-    signatures,
-    { from: sender, gas: gasIncludingRemovingStoreUpfront, gasPrice },
-  )
+  const gasIncludingRemovingStoreUpfront = gas + numOwners.length * 15000
+  const txReceipt = await gnosisSafe.execTransaction(to, valueInWei, data, operation, 0, 0, 0, 0, 0, signatures, {
+    from: sender,
+    gas: gasIncludingRemovingStoreUpfront,
+    gasPrice,
+  })
   const txHash = txReceipt.tx
   await checkReceiptStatus(txHash)
 
diff --git a/src/logic/safe/safeFrontendOperations.js b/src/logic/safe/safeFrontendOperations.js
index f1a4a50c..f75f6d73 100644
--- a/src/logic/safe/safeFrontendOperations.js
+++ b/src/logic/safe/safeFrontendOperations.js
@@ -42,7 +42,7 @@ export const createTransaction = async (
   const web3 = getWeb3()
   const safeAddress = safe.get('address')
   const threshold = safe.get('threshold')
-  const valueInWei = web3.toWei(value, 'ether')
+  const valueInWei = web3.utils.toWei(value, 'ether')
   const CALL = 0
 
   const isExecution = hasOneOwner(safe) || threshold === 1
diff --git a/src/logic/safe/safeTxSignerEIP712.js b/src/logic/safe/safeTxSignerEIP712.js
index 1bd1c23b..80f21981 100644
--- a/src/logic/safe/safeTxSignerEIP712.js
+++ b/src/logic/safe/safeTxSignerEIP712.js
@@ -1,6 +1,5 @@
 // @flow
 import { getWeb3 } from '~/logic/wallets/getWeb3'
-import { promisify } from '~/utils/promisify'
 import { BigNumber } from 'bignumber.js'
 import { EMPTY_DATA } from '~/logic/wallets/ethTransactions'
 import { getSignaturesFrom } from '~/utils/localStorage/signatures'
@@ -21,7 +20,6 @@ const estimateDataGasCosts = (data) => {
   return data.match(/.{2}/g).reduce(reducer, 0)
 }
 
-
 export const estimateDataGas = (
   safe: any,
   to: string,
@@ -42,8 +40,9 @@ export const estimateDataGas = (
   const signatureCost = signatureCount * (68 + 2176 + 2176) // array count (3 -> r, s, v) * signature count
 
   const sigs = getSignaturesFrom(safe.address, nonce)
-  const payload = safe.contract.execTransaction
-    .getData(to, valueInWei, data, operation, txGasEstimate, 0, gasPrice, gasToken, refundReceiver, sigs)
+  const payload = safe.contract.methods
+    .execTransaction(to, valueInWei, data, operation, txGasEstimate, 0, gasPrice, gasToken, refundReceiver, sigs)
+    .encodeABI()
 
   let dataGasEstimate = estimateDataGasCosts(payload) + signatureCost
   if (dataGasEstimate > 65536) {
@@ -64,19 +63,19 @@ export const generateTxGasEstimateFrom = async (
   operation: number,
 ) => {
   try {
-    const estimateData = safe.contract.requiredTxGas.getData(to, valueInWei, data, operation)
-    const estimateResponse = await promisify(cb => getWeb3().eth.call({
+    const estimateData = safe.contract.methods.requiredTxGas(to, valueInWei, data, operation).encodeABI()
+    const estimateResponse = await getWeb3().eth.call({
       to: safeAddress,
       from: safeAddress,
       data: estimateData,
-    }, cb))
+    })
     const txGasEstimate = new BigNumber(estimateResponse.substring(138), 16)
 
     // Add 10k else we will fail in case of nested calls
     return Promise.resolve(txGasEstimate.toNumber() + 10000)
   } catch (error) {
     // eslint-disable-next-line
-    console.log("Error calculating tx gas estimation " + error)
+    console.log('Error calculating tx gas estimation ' + error)
     return Promise.resolve(0)
   }
 }
@@ -151,8 +150,16 @@ export const generateMetamaskSignature = async (
   txGasEstimate: number,
 ) => {
   const web3 = getWeb3()
-  const typedData =
-    await generateTypedDataFrom(safe, safeAddress, to, valueInWei, nonce, data, operation, txGasEstimate)
+  const typedData = await generateTypedDataFrom(
+    safe,
+    safeAddress,
+    to,
+    valueInWei,
+    nonce,
+    data,
+    operation,
+    txGasEstimate,
+  )
 
   const jsonTypedData = JSON.stringify(typedData)
   const signedTypedData = {
@@ -163,7 +170,7 @@ export const generateMetamaskSignature = async (
     params: [jsonTypedData, sender],
     from: sender,
   }
-  const txSignedResponse = await promisify(cb => web3.currentProvider.sendAsync(signedTypedData, cb))
+  const txSignedResponse = await web3.currentProvider.sendAsync(signedTypedData)
 
   return txSignedResponse.result.replace(EMPTY_DATA, '')
 }
diff --git a/src/logic/wallets/ethTransactions.js b/src/logic/wallets/ethTransactions.js
index d7fecb2e..f2b8b54c 100644
--- a/src/logic/wallets/ethTransactions.js
+++ b/src/logic/wallets/ethTransactions.js
@@ -1,7 +1,6 @@
 // @flow
 import { BigNumber } from 'bignumber.js'
 import { getWeb3 } from '~/logic/wallets/getWeb3'
-import { promisify } from '~/utils/promisify'
 import { enhancedFetch } from '~/utils/fetch'
 
 // const MAINNET_NETWORK = 1
@@ -13,7 +12,7 @@ export const checkReceiptStatus = async (hash: string) => {
   }
 
   const web3 = getWeb3()
-  const txReceipt = await promisify(cb => web3.eth.getTransactionReceipt(hash, cb))
+  const txReceipt = await web3.eth.getTransactionReceipt(hash)
 
   const { status } = txReceipt
   if (!status) {
@@ -53,7 +52,7 @@ export const calculateGasPrice = async () => {
 export const calculateGasOf = async (data: Object, from: string, to: string) => {
   const web3 = getWeb3()
   try {
-    const gas = await promisify(cb => web3.eth.estimateGas({ data, from, to }, cb))
+    const gas = await web3.eth.estimateGas({ data, from, to })
 
     return gas * 2
   } catch (err) {
diff --git a/src/logic/wallets/tokens.js b/src/logic/wallets/tokens.js
index 3088b8fe..29054228 100644
--- a/src/logic/wallets/tokens.js
+++ b/src/logic/wallets/tokens.js
@@ -5,5 +5,5 @@ import { BigNumber } from 'bignumber.js'
 export const toNative = async (amt: string | number | BigNumber, decimal: number): Promise<BigNumber> => {
   const web3 = getWeb3()
 
-  return web3.toBigNumber(amt).mul(10 ** decimal)
+  return web3.utils.BN(amt).mul(10 ** decimal)
 }
diff --git a/src/routes/safe/component/AddOwner/index.jsx b/src/routes/safe/component/AddOwner/index.jsx
index 15d1e18f..b8f69092 100644
--- a/src/routes/safe/component/AddOwner/index.jsx
+++ b/src/routes/safe/component/AddOwner/index.jsx
@@ -12,14 +12,13 @@ import Review from './Review'
 import selector, { type SelectorProps } from './selector'
 import actions, { type Actions } from './actions'
 
-const getSteps = () => [
-  'Fill Owner Form', 'Review Add order operation',
-]
+const getSteps = () => ['Fill Owner Form', 'Review Add order operation']
 
-type Props = SelectorProps & Actions & {
-  safe: Safe,
-  threshold: number,
-}
+type Props = SelectorProps &
+  Actions & {
+    safe: Safe,
+    threshold: number,
+  }
 
 type State = {
   done: boolean,
@@ -44,7 +43,7 @@ export const addOwner = async (values: Object, safe: Safe, threshold: number, ex
   const newOwnerAddress = values[OWNER_ADDRESS_PARAM]
   const newOwnerName = values[NAME_PARAM]
 
-  const data = gnosisSafe.contract.addOwnerWithThreshold.getData(newOwnerAddress, newThreshold)
+  const data = gnosisSafe.contract.methods.addOwnerWithThreshold(newOwnerAddress, newThreshold).encodeABI()
   await createTransaction(safe, `Add Owner ${newOwnerName}`, safeAddress, 0, nonce, executor, data)
   setOwners(safeAddress, safe.get('owners').push(makeOwner({ name: newOwnerName, address: newOwnerAddress })))
 }
@@ -90,15 +89,16 @@ class AddOwner extends React.Component<Props, State> {
           onReset={this.onReset}
         >
           <Stepper.Page numOwners={safe.get('owners').count()} threshold={safe.get('threshold')} addresses={addresses}>
-            { AddOwnerForm }
-          </Stepper.Page>
-          <Stepper.Page>
-            { Review }
+            {AddOwnerForm}
           </Stepper.Page>
+          <Stepper.Page>{Review}</Stepper.Page>
         </Stepper>
       </React.Fragment>
     )
   }
 }
 
-export default connect(selector, actions)(AddOwner)
+export default connect(
+  selector,
+  actions,
+)(AddOwner)
diff --git a/src/routes/safe/component/Balances/Tokens/index.jsx b/src/routes/safe/component/Balances/Tokens/index.jsx
index d3520680..1b6b1f8f 100644
--- a/src/routes/safe/component/Balances/Tokens/index.jsx
+++ b/src/routes/safe/component/Balances/Tokens/index.jsx
@@ -37,10 +37,9 @@ type State = {
   filter: string,
 }
 
-const filterBy = (filter: string, tokens: List<Token>): List<Token> =>
-  tokens.filter((token: Token) => !filter ||
-    token.get('symbol').toLowerCase().includes(filter.toLowerCase()) ||
-    token.get('name').toLowerCase().includes(filter.toLowerCase()))
+const filterBy = (filter: string, tokens: List<Token>): List<Token> => tokens.filter((token: Token) => !filter
+    || token.get('symbol').toLowerCase().includes(filter.toLowerCase())
+    || token.get('name').toLowerCase().includes(filter.toLowerCase()))
 
 
 class Tokens extends React.Component<Props, State> {
@@ -132,4 +131,3 @@ class Tokens extends React.Component<Props, State> {
 const TokenComponent = withStyles(styles)(Tokens)
 
 export default connect(undefined, actions)(TokenComponent)
-
diff --git a/src/routes/safe/component/Balances/index.jsx b/src/routes/safe/component/Balances/index.jsx
index c63312f4..5dbd135e 100644
--- a/src/routes/safe/component/Balances/index.jsx
+++ b/src/routes/safe/component/Balances/index.jsx
@@ -16,7 +16,9 @@ import Paragraph from '~/components/layout/Paragraph'
 import Modal from '~/components/Modal'
 import { type Column, cellWidth } from '~/components/Table/TableHead'
 import Table from '~/components/Table'
-import { getBalanceData, generateColumns, BALANCE_TABLE_ASSET_ID, type BalanceRow, filterByZero } from './dataFetcher'
+import {
+  getBalanceData, generateColumns, BALANCE_TABLE_ASSET_ID, type BalanceRow, filterByZero,
+} from './dataFetcher'
 import Tokens from './Tokens'
 import Send from './Send'
 import Receive from './Receive'
@@ -114,32 +116,50 @@ class Balances extends React.Component<Props, State> {
         >
           {(sortedData: Array<BalanceRow>) => sortedData.map((row: any, index: number) => (
             <TableRow tabIndex={-1} key={index} className={classes.hide}>
-              { autoColumns.map((column: Column) => (
-                <TableCell key={column.id} style={cellWidth(column.width)} numeric={column.numeric} component="td">
+              {autoColumns.map((column: Column) => (
+                <TableCell key={column.id} style={cellWidth(column.width)} align={column.align} component="td">
                   {row[column.id]}
                 </TableCell>
-              )) }
+              ))}
               <TableCell component="td">
                 <Row align="end" className={classes.actions}>
-                  { granted &&
-                    <Button variant="contained" size="small" color="secondary" className={classes.send} onClick={this.onShow('Send')}>
+                  {granted && (
+                    <Button
+                      variant="contained"
+                      size="small"
+                      color="secondary"
+                      className={classes.send}
+                      onClick={this.onShow('Send')}
+                    >
                       <CallMade className={classNames(classes.leftIcon, classes.iconSmall)} />
-                      Send
+                        Send
                     </Button>
-                  }
-                  <Button variant="contained" size="small" color="secondary" className={classes.receive} onClick={this.onShow('Receive')}>
+                  )}
+                  <Button
+                    variant="contained"
+                    size="small"
+                    color="secondary"
+                    className={classes.receive}
+                    onClick={this.onShow('Receive')}
+                  >
                     <CallReceived className={classNames(classes.leftIcon, classes.iconSmall)} />
-                    Receive
+                      Receive
                   </Button>
                 </Row>
               </TableCell>
             </TableRow>
-          ))}
+          ))
+          }
         </Table>
         <Modal title="Send Tokens" description="Send Tokens Form" handleClose={this.onHide('Send')} open={showSend}>
           <Send onClose={this.onHide('Send')} />
         </Modal>
-        <Modal title="Receive Tokens" description="Receive Tokens Form" handleClose={this.onHide('Receive')} open={showReceive}>
+        <Modal
+          title="Receive Tokens"
+          description="Receive Tokens Form"
+          handleClose={this.onHide('Receive')}
+          open={showReceive}
+        >
           <Receive onClose={this.onHide('Receive')} />
         </Modal>
       </React.Fragment>
diff --git a/src/routes/safe/component/RemoveOwner/index.jsx b/src/routes/safe/component/RemoveOwner/index.jsx
index 87bb48a0..7121cd65 100644
--- a/src/routes/safe/component/RemoveOwner/index.jsx
+++ b/src/routes/safe/component/RemoveOwner/index.jsx
@@ -48,7 +48,7 @@ export const removeOwner = async (
   const storedOwners = await gnosisSafe.getOwners()
   const index = storedOwners.findIndex(ownerAddress => ownerAddress === userToRemove)
   const prevAddress = index === 0 ? SENTINEL_ADDRESS : storedOwners[index - 1]
-  const data = gnosisSafe.contract.removeOwner.getData(prevAddress, userToRemove, newThreshold)
+  const data = gnosisSafe.contract.removeOwner(prevAddress, userToRemove, newThreshold).encodeABI()
   const text = name || userToRemove
 
   return createTransaction(safe, `Remove Owner ${text}`, safeAddress, 0, nonce, executor, data)
diff --git a/src/routes/safe/component/SendToken/index.jsx b/src/routes/safe/component/SendToken/index.jsx
index ec30142a..a102a856 100644
--- a/src/routes/safe/component/SendToken/index.jsx
+++ b/src/routes/safe/component/SendToken/index.jsx
@@ -36,7 +36,7 @@ const getTransferData = async (tokenAddress: string, to: string, amount: BigNumb
   const StandardToken = await getStandardTokenContract()
   const myToken = await StandardToken.at(tokenAddress)
 
-  return myToken.contract.transfer.getData(to, amount)
+  return myToken.contract.transfer(to, amount).encodeABI()
 }
 
 const processTokenTransfer = async (safe: Safe, token: Token, to: string, amount: number, userAddress: string) => {
diff --git a/src/routes/safe/component/Threshold/index.jsx b/src/routes/safe/component/Threshold/index.jsx
index 8f86484c..e6ccfed4 100644
--- a/src/routes/safe/component/Threshold/index.jsx
+++ b/src/routes/safe/component/Threshold/index.jsx
@@ -32,14 +32,14 @@ class Threshold extends React.PureComponent<Props, State> {
 
   onThreshold = async (values: Object) => {
     try {
-      const { safe, userAddress } = this.props // , fetchThreshold } = this.props
+      const { safe, userAddress, fetchTransactions } = this.props // , fetchThreshold } = this.props
       const newThreshold = values[THRESHOLD_PARAM]
       const safeAddress = safe.get('address')
       const gnosisSafe = await getSafeEthereumInstance(safeAddress)
       const nonce = await gnosisSafe.nonce()
-      const data = gnosisSafe.contract.changeThreshold.getData(newThreshold)
+      const data = gnosisSafe.contract.changeThreshold(newThreshold).encodeABI()
       await createTransaction(safe, `Change Safe's threshold [${nonce}]`, safeAddress, 0, nonce, userAddress, data)
-      await this.props.fetchTransactions(safeAddress)
+      await fetchTransactions(safeAddress)
       this.setState({ done: true })
     } catch (error) {
       this.setState({ done: false })
@@ -49,8 +49,10 @@ class Threshold extends React.PureComponent<Props, State> {
   }
 
   onReset = () => {
+    const { onReset } = this.props
     this.setState({ done: false })
-    this.props.onReset()
+
+    onReset()
   }
 
   render() {
diff --git a/src/routes/tokens/component/AddToken/FirstPage.jsx b/src/routes/tokens/component/AddToken/FirstPage.jsx
index 6bd7e89e..6a7d194e 100644
--- a/src/routes/tokens/component/AddToken/FirstPage.jsx
+++ b/src/routes/tokens/component/AddToken/FirstPage.jsx
@@ -5,7 +5,6 @@ import TextField from '~/components/forms/TextField'
 import { composeValidators, required, mustBeEthereumAddress, uniqueAddress } from '~/components/forms/validator'
 import Block from '~/components/layout/Block'
 import Heading from '~/components/layout/Heading'
-import { promisify } from '~/utils/promisify'
 import { getWeb3 } from '~/logic/wallets/getWeb3'
 import { EMPTY_DATA } from '~/logic/wallets/ethTransactions'
 import { getStandardTokenContract } from '~/routes/tokens/store/actions/fetchTokens'
@@ -17,7 +16,7 @@ type Props = {
 export const TOKEN_ADRESS_PARAM = 'tokenAddress'
 
 export const token = async (tokenAddress: string) => {
-  const code = await promisify(cb => getWeb3().eth.getCode(tokenAddress, cb))
+  const code = await getWeb3().eth.getCode(tokenAddress)
   const isDeployed = code !== EMPTY_DATA
 
   if (!isDeployed) {
diff --git a/src/routes/tokens/component/AddToken/index.jsx b/src/routes/tokens/component/AddToken/index.jsx
index 0b5d1164..91f82700 100644
--- a/src/routes/tokens/component/AddToken/index.jsx
+++ b/src/routes/tokens/component/AddToken/index.jsx
@@ -3,11 +3,12 @@ import * as React from 'react'
 import Stepper from '~/components/Stepper'
 import { getHumanFriendlyToken } from '~/routes/tokens/store/actions/fetchTokens'
 import FirstPage, { TOKEN_ADRESS_PARAM } from '~/routes/tokens/component/AddToken/FirstPage'
-import SecondPage, { TOKEN_SYMBOL_PARAM, TOKEN_DECIMALS_PARAM, TOKEN_LOGO_URL_PARAM, TOKEN_NAME_PARAM } from '~/routes/tokens/component/AddToken/SecondPage'
+import SecondPage, {
+  TOKEN_SYMBOL_PARAM, TOKEN_DECIMALS_PARAM, TOKEN_LOGO_URL_PARAM, TOKEN_NAME_PARAM,
+} from '~/routes/tokens/component/AddToken/SecondPage'
 import { makeToken, type Token } from '~/routes/tokens/store/model/token'
 import addTokenAction from '~/routes/tokens/store/actions/addToken'
 import { getWeb3 } from '~/logic/wallets/getWeb3'
-import { promisify } from '~/utils/promisify'
 import { EMPTY_DATA } from '~/logic/wallets/ethTransactions'
 import Review from './Review'
 
@@ -69,17 +70,18 @@ class AddToken extends React.Component<Props, State> {
     const tokenAddress = values[TOKEN_ADRESS_PARAM]
     const erc20Token = await getHumanFriendlyToken()
     const instance = await erc20Token.at(tokenAddress)
+    const web3 = getWeb3()
 
-    const dataName = await instance.contract.name.getData()
-    const nameResult = await promisify(cb => getWeb3().eth.call({ to: tokenAddress, data: dataName }, cb))
+    const dataName = await instance.contract.methods.name().encodeABI()
+    const nameResult = await web3.eth.call({ to: tokenAddress, data: dataName })
     const hasName = nameResult !== EMPTY_DATA
 
-    const dataSymbol = await instance.contract.symbol.getData()
-    const symbolResult = await promisify(cb => getWeb3().eth.call({ to: tokenAddress, data: dataSymbol }, cb))
+    const dataSymbol = await instance.contract.methods.symbol().encodeABI()
+    const symbolResult = await web3.eth.call({ to: tokenAddress, data: dataSymbol })
     const hasSymbol = symbolResult !== EMPTY_DATA
 
-    const dataDecimals = await instance.contract.decimals.getData()
-    const decimalsResult = await promisify(cb => getWeb3().eth.call({ to: tokenAddress, data: dataDecimals }, cb))
+    const dataDecimals = await instance.contract.methods.decimals().encodeABI()
+    const decimalsResult = await web3.eth.call({ to: tokenAddress, data: dataDecimals })
     const hasDecimals = decimalsResult !== EMPTY_DATA
 
 
diff --git a/src/routes/tokens/component/Token/index.jsx b/src/routes/tokens/component/Token/index.jsx
index 80e2a680..17b3696e 100644
--- a/src/routes/tokens/component/Token/index.jsx
+++ b/src/routes/tokens/component/Token/index.jsx
@@ -76,10 +76,12 @@ class TokenComponent extends React.PureComponent<Props, State> {
                 color="primary"
               />
               {symbol}
-              { token.get('removable') &&
-                <IconButton aria-label="Delete" onClick={this.onRemoveClick}>
-                  <Delete />
-                </IconButton>
+              { token.get('removable')
+                && (
+                  <IconButton aria-label="Delete" onClick={this.onRemoveClick}>
+                    <Delete />
+                  </IconButton>
+                )
               }
             </Typography>
           </CardContent>
diff --git a/src/test/builder/safe.dom.builder.js b/src/test/builder/safe.dom.builder.js
index 30248b24..8ef4f8fb 100644
--- a/src/test/builder/safe.dom.builder.js
+++ b/src/test/builder/safe.dom.builder.js
@@ -5,7 +5,6 @@ import SafeView from '~/routes/safe/component/Safe'
 import { aNewStore, type GlobalState } from '~/store'
 import { sleep } from '~/utils/timer'
 import { getWeb3 } from '~/logic/wallets/getWeb3'
-import { promisify } from '~/utils/promisify'
 import { addEtherTo } from '~/test/utils/tokenMovements'
 import { aMinedSafe } from '~/test/builder/safe.redux.builder'
 import { travelToSafe } from '~/test/builder/safe.dom.utils'
@@ -31,7 +30,7 @@ export const renderSafeInDom = async (
   // deploy safe updating store
   const address = await aMinedSafe(store, owners, threshold)
   // have available accounts
-  const accounts = await promisify(cb => getWeb3().eth.getAccounts(cb))
+  const accounts = await getWeb3().eth.getAccounts()
   // navigate to SAFE route
   const SafeDom = travelToSafe(store, address)
 
diff --git a/src/test/builder/safe.dom.utils.js b/src/test/builder/safe.dom.utils.js
index c0bb6dbe..209c8e2d 100644
--- a/src/test/builder/safe.dom.utils.js
+++ b/src/test/builder/safe.dom.utils.js
@@ -6,7 +6,7 @@ import { SEE_MULTISIG_BUTTON_TEXT } from '~/routes/safe/component/Safe/MultisigT
 import fetchTransactions from '~/routes/safe/store/actions/fetchTransactions'
 import { sleep } from '~/utils/timer'
 import { Provider } from 'react-redux'
-import { ConnectedRouter } from 'react-router-redux'
+import { ConnectedRouter } from 'connected-react-router'
 import AppRoutes from '~/routes'
 import { SAFELIST_ADDRESS, SETTINS_ADDRESS } from '~/routes/routes'
 import { history, type GlobalState } from '~/store'
diff --git a/src/test/builder/safe.redux.builder.js b/src/test/builder/safe.redux.builder.js
index 60968248..34049e0f 100644
--- a/src/test/builder/safe.redux.builder.js
+++ b/src/test/builder/safe.redux.builder.js
@@ -3,7 +3,6 @@ import { makeSafe, type Safe } from '~/routes/safe/store/model/safe'
 import addSafe, { buildOwnersFrom } from '~/routes/safe/store/actions/addSafe'
 import { FIELD_NAME, FIELD_CONFIRMATIONS, FIELD_OWNERS, getOwnerNameBy, getOwnerAddressBy } from '~/routes/open/components/fields'
 import { getWeb3, getProviderInfo } from '~/logic/wallets/getWeb3'
-import { promisify } from '~/utils/promisify'
 import { createSafe, type OpenState } from '~/routes/open/container/Open'
 import { type GlobalState } from '~/store/index'
 import { makeProvider } from '~/logic/wallets/store/model/provider'
@@ -72,7 +71,7 @@ export const aMinedSafe = async (
   const walletRecord = makeProvider(provider)
   store.dispatch(addProvider(walletRecord))
 
-  const accounts = await promisify(cb => getWeb3().eth.getAccounts(cb))
+  const accounts = await getWeb3().eth.getAccounts()
   const form = {
     [FIELD_NAME]: 'Safe Name',
     [FIELD_CONFIRMATIONS]: `${threshold}`,
diff --git a/src/test/safe.dom.create.test.js b/src/test/safe.dom.create.test.js
index 61abdbd2..5551d5eb 100644
--- a/src/test/safe.dom.create.test.js
+++ b/src/test/safe.dom.create.test.js
@@ -4,7 +4,7 @@ import { type Store } from 'redux'
 import TestUtils from 'react-dom/test-utils'
 import Select from '@material-ui/core/Select'
 import { Provider } from 'react-redux'
-import { ConnectedRouter } from 'react-router-redux'
+import { ConnectedRouter } from 'connected-react-router'
 import { ADD_OWNER_BUTTON } from '~/routes/open/components/SafeOwnersForm'
 import Open from '~/routes/open/container/Open'
 import { aNewStore, history, type GlobalState } from '~/store'
@@ -12,7 +12,6 @@ import { sleep } from '~/utils/timer'
 import { getProviderInfo, getWeb3 } from '~/logic/wallets/getWeb3'
 import addProvider from '~/logic/wallets/store/actions/addProvider'
 import { makeProvider } from '~/logic/wallets/store/model/provider'
-import { promisify } from '~/utils/promisify'
 import { getGnosisSafeInstanceAt } from '~/logic/contracts/safeContracts'
 import { whenSafeDeployed } from './builder/safe.dom.utils'
 
@@ -34,7 +33,7 @@ const fillOpenSafeForm = async (localStore: Store<GlobalState>) => {
 
 const deploySafe = async (safe: React$Component<{}>, threshold: number, numOwners: number) => {
   const web3 = getWeb3()
-  const accounts = await promisify(cb => web3.eth.getAccounts(cb))
+  const accounts = await web3.eth.getAccounts()
 
   expect(threshold).toBeLessThanOrEqual(numOwners)
   const form = TestUtils.findRenderedDOMComponentWithTag(safe, 'form')
diff --git a/src/test/safe.dom.load.test.js b/src/test/safe.dom.load.test.js
index f74057b4..8faf8c6f 100644
--- a/src/test/safe.dom.load.test.js
+++ b/src/test/safe.dom.load.test.js
@@ -3,7 +3,7 @@ import * as React from 'react'
 import { type Store } from 'redux'
 import TestUtils from 'react-dom/test-utils'
 import { Provider } from 'react-redux'
-import { ConnectedRouter } from 'react-router-redux'
+import { ConnectedRouter } from 'connected-react-router'
 import Load from '~/routes/load/container/Load'
 import { aNewStore, history, type GlobalState } from '~/store'
 import { sleep } from '~/utils/timer'
diff --git a/src/test/safe.dom.tokens.test.js b/src/test/safe.dom.tokens.test.js
index 3174373f..ec4332c3 100644
--- a/src/test/safe.dom.tokens.test.js
+++ b/src/test/safe.dom.tokens.test.js
@@ -6,7 +6,6 @@ import { aNewStore } from '~/store'
 import { aMinedSafe } from '~/test/builder/safe.redux.builder'
 import { addTknTo, getFirstTokenContract } from '~/test/utils/tokenMovements'
 import { EXPAND_BALANCE_INDEX, travelToSafe } from '~/test/builder/safe.dom.utils'
-import { promisify } from '~/utils/promisify'
 import { getWeb3 } from '~/logic/wallets/getWeb3'
 import { sendMoveTokensForm, dispatchTknBalance } from '~/test/utils/transactions/moveTokens.helper'
 import { sleep } from '~/utils/timer'
@@ -18,7 +17,7 @@ describe('DOM > Feature > SAFE ERC20 TOKENS', () => {
   beforeEach(async () => {
     store = aNewStore()
     safeAddress = await aMinedSafe(store)
-    accounts = await promisify(cb => getWeb3().eth.getAccounts(cb))
+    accounts = await getWeb3().eth.getAccounts()
   })
 
   it('sends ERC20 tokens', async () => {
diff --git a/src/test/safe.redux.load.test.js b/src/test/safe.redux.load.test.js
index fd39b766..36df6122 100644
--- a/src/test/safe.redux.load.test.js
+++ b/src/test/safe.redux.load.test.js
@@ -8,7 +8,6 @@ import { loadSafe } from '~/routes/load/container/Load'
 import { safesMapSelector } from '~/routes/safeList/store/selectors'
 import { makeOwner, type Owner } from '~/routes/safe/store/model/owner'
 import { getWeb3 } from '~/logic/wallets/getWeb3'
-import { promisify } from '~/utils/promisify'
 import { safesInitialState } from '~/routes/safe/store/reducer/safe'
 import { setOwners, OWNERS_KEY } from '~/utils/localStorage'
 
@@ -20,7 +19,7 @@ describe('Safe - redux load safe', () => {
     store = aNewStore()
     address = await aMinedSafe(store)
     localStorage.clear()
-    accounts = await promisify(cb => getWeb3().eth.getAccounts(cb))
+    accounts = await getWeb3().eth.getAccounts()
   })
 
   it('if safe is not present, store and persist it with default names', async () => {
diff --git a/src/test/safe.redux.owners.test.js b/src/test/safe.redux.owners.test.js
index c185a4fb..16d1963f 100644
--- a/src/test/safe.redux.owners.test.js
+++ b/src/test/safe.redux.owners.test.js
@@ -2,7 +2,6 @@
 import { List } from 'immutable'
 import { aNewStore } from '~/store'
 import { getWeb3 } from '~/logic/wallets/getWeb3'
-import { promisify } from '~/utils/promisify'
 import { confirmationsTransactionSelector, safeTransactionsSelector } from '~/routes/safe/store/selectors'
 import fetchTransactions from '~/routes/safe/store/actions/fetchTransactions'
 import { type Safe } from '~/routes/safe/store/model/safe'
@@ -103,7 +102,7 @@ describe('React DOM TESTS > Add and remove owners', () => {
     const threshold = 1
     const store = aNewStore()
     const address = await aMinedSafe(store, numOwners, threshold)
-    const accounts = await promisify(cb => getWeb3().eth.getAccounts(cb))
+    const accounts = await getWeb3().eth.getAccounts()
     const gnosisSafe = await getGnosisSafeInstanceAt(address)
 
     const values = {
@@ -132,7 +131,7 @@ describe('React DOM TESTS > Add and remove owners', () => {
     const threshold = 1
     const store = aNewStore()
     const address = await aMinedSafe(store, numOwners, threshold)
-    const accounts = await promisify(cb => getWeb3().eth.getAccounts(cb))
+    const accounts = await getWeb3().eth.getAccounts()
     const gnosisSafe = await getGnosisSafeInstanceAt(address)
 
     const values = {
@@ -164,7 +163,7 @@ describe('React DOM TESTS > Add and remove owners', () => {
     const threshold = 2
     const store = aNewStore()
     const address = await aMinedSafe(store, numOwners, threshold)
-    const accounts = await promisify(cb => getWeb3().eth.getAccounts(cb))
+    const accounts = await getWeb3().eth.getAccounts()
     const gnosisSafe = await getGnosisSafeInstanceAt(address)
 
     const decrease = shouldDecrease(numOwners, threshold)
@@ -190,7 +189,7 @@ describe('React DOM TESTS > Add and remove owners', () => {
     const threshold = 2
     const store = aNewStore()
     const address = await aMinedSafe(store, numOwners, threshold)
-    const accounts = await promisify(cb => getWeb3().eth.getAccounts(cb))
+    const accounts = await getWeb3().eth.getAccounts()
     const gnosisSafe = await getGnosisSafeInstanceAt(address)
 
     const decrease = true
@@ -215,7 +214,7 @@ describe('React DOM TESTS > Add and remove owners', () => {
     const threshold = 2
     const store = aNewStore()
     const address = await aMinedSafe(store, numOwners, threshold)
-    const accounts = await promisify(cb => getWeb3().eth.getAccounts(cb))
+    const accounts = await getWeb3().eth.getAccounts()
     const gnosisSafe = await getGnosisSafeInstanceAt(address)
 
     const decrease = shouldDecrease(numOwners, threshold)
diff --git a/src/test/safe.redux.transactions.test.js b/src/test/safe.redux.transactions.test.js
index cffffd8c..a76bca59 100644
--- a/src/test/safe.redux.transactions.test.js
+++ b/src/test/safe.redux.transactions.test.js
@@ -8,7 +8,6 @@ import { makeConfirmation } from '~/routes/safe/store/model/confirmation'
 import { aNewStore } from '~/store'
 import { aMinedSafe } from '~/test/builder/safe.redux.builder'
 import { getSafeFrom } from '~/test/utils/safeHelper'
-import { promisify } from '~/utils/promisify'
 import { getWeb3 } from '~/logic/wallets/getWeb3'
 import { safeTransactionsSelector } from '~/routes/safe/store/selectors'
 import fetchSafe from '~/routes/safe/store/actions/fetchSafe'
@@ -20,7 +19,7 @@ describe('Transactions Suite', () => {
   let safeAddress: string
   let accounts: string[]
   beforeAll(async () => {
-    accounts = await promisify(cb => getWeb3().eth.getAccounts(cb))
+    accounts = await getWeb3().eth.getAccounts()
   })
   beforeEach(async () => {
     localStorage.clear()
diff --git a/src/test/tokens.dom.adding.test.js b/src/test/tokens.dom.adding.test.js
index 0054f72c..7bee57d8 100644
--- a/src/test/tokens.dom.adding.test.js
+++ b/src/test/tokens.dom.adding.test.js
@@ -2,7 +2,6 @@
 import * as TestUtils from 'react-dom/test-utils'
 import { getWeb3 } from '~/logic/wallets/getWeb3'
 import { type Match } from 'react-router-dom'
-import { promisify } from '~/utils/promisify'
 import TokenComponent from '~/routes/tokens/component/Token'
 import { getFirstTokenContract, getSecondTokenContract } from '~/test/utils/tokenMovements'
 import { aNewStore } from '~/store'
@@ -24,7 +23,7 @@ describe('DOM > Feature > Add new ERC 20 Tokens', () => {
 
   beforeAll(async () => {
     web3 = getWeb3()
-    accounts = await promisify(cb => web3.eth.getAccounts(cb))
+    accounts = await web3.eth.getAccounts()
     firstErc20Token = await getFirstTokenContract(web3, accounts[0])
     secondErc20Token = await getSecondTokenContract(web3, accounts[0])
 
diff --git a/src/test/tokens.dom.enabling.test.js b/src/test/tokens.dom.enabling.test.js
index 6fbccab6..7f50dc7b 100644
--- a/src/test/tokens.dom.enabling.test.js
+++ b/src/test/tokens.dom.enabling.test.js
@@ -3,7 +3,6 @@ import * as TestUtils from 'react-dom/test-utils'
 import { List } from 'immutable'
 import { getWeb3 } from '~/logic/wallets/getWeb3'
 import { type Match } from 'react-router-dom'
-import { promisify } from '~/utils/promisify'
 import TokenComponent from '~/routes/tokens/component/Token'
 import Checkbox from '@material-ui/core/Checkbox'
 import { getFirstTokenContract, getSecondTokenContract, addTknTo } from '~/test/utils/tokenMovements'
@@ -26,7 +25,7 @@ describe('DOM > Feature > Enable and disable default tokens', () => {
 
   beforeAll(async () => {
     web3 = getWeb3()
-    accounts = await promisify(cb => web3.eth.getAccounts(cb))
+    accounts = await web3.eth.getAccounts()
     firstErc20Token = await getFirstTokenContract(web3, accounts[0])
     secondErc20Token = await getSecondTokenContract(web3, accounts[0])
     // $FlowFixMe
diff --git a/src/test/tokens.dom.removing.test.js b/src/test/tokens.dom.removing.test.js
index f0be7194..e146e261 100644
--- a/src/test/tokens.dom.removing.test.js
+++ b/src/test/tokens.dom.removing.test.js
@@ -1,7 +1,6 @@
 // @flow
 import * as TestUtils from 'react-dom/test-utils'
 import { getWeb3 } from '~/logic/wallets/getWeb3'
-import { promisify } from '~/utils/promisify'
 import { getFirstTokenContract, getSecondTokenContract } from '~/test/utils/tokenMovements'
 import { aNewStore } from '~/store'
 import { aMinedSafe } from '~/test/builder/safe.redux.builder'
@@ -24,7 +23,7 @@ describe('DOM > Feature > Add new ERC 20 Tokens', () => {
 
   beforeAll(async () => {
     web3 = getWeb3()
-    accounts = await promisify(cb => web3.eth.getAccounts(cb))
+    accounts = await web3.eth.getAccounts()
     firstErc20Token = await getFirstTokenContract(web3, accounts[0])
     secondErc20Token = await getSecondTokenContract(web3, accounts[0])
 
diff --git a/src/test/tokens.redux.adding.test.js b/src/test/tokens.redux.adding.test.js
index eacba2c9..86be199e 100644
--- a/src/test/tokens.redux.adding.test.js
+++ b/src/test/tokens.redux.adding.test.js
@@ -1,7 +1,6 @@
 // @flow
 import { getWeb3 } from '~/logic/wallets/getWeb3'
 import { type Match } from 'react-router-dom'
-import { promisify } from '~/utils/promisify'
 import { getFirstTokenContract, getSecondTokenContract } from '~/test/utils/tokenMovements'
 import { aNewStore } from '~/store'
 import { aMinedSafe } from '~/test/builder/safe.redux.builder'
@@ -24,7 +23,7 @@ describe('DOM > Feature > Add new ERC 20 Tokens', () => {
 
   beforeAll(async () => {
     web3 = getWeb3()
-    accounts = await promisify(cb => web3.eth.getAccounts(cb))
+    accounts = await web3.eth.getAccounts()
     firstErc20Token = await getFirstTokenContract(web3, accounts[0])
     secondErc20Token = await getSecondTokenContract(web3, accounts[0])
 
diff --git a/src/test/tokens.redux.remove.test.js b/src/test/tokens.redux.remove.test.js
index 182a66a2..04c75869 100644
--- a/src/test/tokens.redux.remove.test.js
+++ b/src/test/tokens.redux.remove.test.js
@@ -1,7 +1,6 @@
 // @flow
 import { getWeb3 } from '~/logic/wallets/getWeb3'
 import { type Match } from 'react-router-dom'
-import { promisify } from '~/utils/promisify'
 import { getFirstTokenContract, getSecondTokenContract } from '~/test/utils/tokenMovements'
 import { aNewStore } from '~/store'
 import { aMinedSafe } from '~/test/builder/safe.redux.builder'
@@ -11,7 +10,12 @@ import { testToken } from '~/test/builder/tokens.dom.utils'
 import * as fetchTokensModule from '~/routes/tokens/store/actions/fetchTokens'
 import * as enhancedFetchModule from '~/utils/fetch'
 import { TOKEN_ADRESS_PARAM } from '~/routes/tokens/component/AddToken/FirstPage'
-import { TOKEN_NAME_PARAM, TOKEN_DECIMALS_PARAM, TOKEN_SYMBOL_PARAM, TOKEN_LOGO_URL_PARAM } from '~/routes/tokens/component/AddToken/SecondPage'
+import {
+  TOKEN_NAME_PARAM,
+  TOKEN_DECIMALS_PARAM,
+  TOKEN_SYMBOL_PARAM,
+  TOKEN_LOGO_URL_PARAM,
+} from '~/routes/tokens/component/AddToken/SecondPage'
 import addToken from '~/routes/tokens/store/actions/addToken'
 import { addTokenFnc } from '~/routes/tokens/component/AddToken'
 import { activeTokensSelector, tokenListSelector } from '~/routes/tokens/store/selectors'
@@ -27,7 +31,7 @@ describe('DOM > Feature > Add new ERC 20 Tokens', () => {
 
   beforeAll(async () => {
     web3 = getWeb3()
-    accounts = await promisify(cb => web3.eth.getAccounts(cb))
+    accounts = await web3.eth.getAccounts()
     firstErc20Token = await getFirstTokenContract(web3, accounts[0])
     secondErc20Token = await getSecondTokenContract(web3, accounts[0])
 
diff --git a/src/test/utils/ethereumErrors.js b/src/test/utils/ethereumErrors.js
index ba8d874e..e1d10f57 100644
--- a/src/test/utils/ethereumErrors.js
+++ b/src/test/utils/ethereumErrors.js
@@ -1,7 +1,6 @@
 // @flow
 import { getWeb3 } from '~/logic/wallets/getWeb3'
 import abi from 'ethereumjs-abi'
-import { promisify } from '~/utils/promisify'
 
 /*
 console.log(`to[${to}] \n\n valieInWei[${valueInWei}] \n\n
@@ -15,9 +14,12 @@ const err = await getErrorMessage(address, 0, txData, accounts[2])
 */
 export const getErrorMessage = async (to: string, value: number, data: string, from: string) => {
   const web3 = getWeb3()
-  const returnData = await promisify(cb => web3.eth.call({
-    to, from, value, data,
-  }, cb))
+  const returnData = await web3.eth.call({
+    to,
+    from,
+    value,
+    data,
+  })
   const returnBuffer = Buffer.from(returnData.slice(2), 'hex')
 
   return abi.rawDecode(['string'], returnBuffer.slice(4))[0]
diff --git a/src/test/utils/tokenMovements.js b/src/test/utils/tokenMovements.js
index ec8cbfff..3823eab0 100644
--- a/src/test/utils/tokenMovements.js
+++ b/src/test/utils/tokenMovements.js
@@ -1,16 +1,15 @@
 // @flow
 import contract from 'truffle-contract'
 import { getBalanceInEtherOf, getWeb3 } from '~/logic/wallets/getWeb3'
-import { promisify } from '~/utils/promisify'
 import Token from '#/test/TestToken.json'
 import { ensureOnce } from '~/utils/singleton'
 import { toNative } from '~/logic/wallets/tokens'
 
 export const addEtherTo = async (address: string, eth: string) => {
   const web3 = getWeb3()
-  const accounts = await promisify(cb => web3.eth.getAccounts(cb))
-  const txData = { from: accounts[0], to: address, value: web3.toWei(eth, 'ether') }
-  return promisify(cb => web3.eth.sendTransaction(txData, cb))
+  const accounts = await web3.eth.getAccounts()
+  const txData = { from: accounts[0], to: address, value: web3.utils.toWei(eth, 'ether') }
+  return web3.eth.sendTransaction(txData)
 }
 
 export const checkBalanceOf = async (addressToTest: string, value: string) => {
@@ -30,7 +29,7 @@ export const getSecondTokenContract = ensureOnce(createTokenContract)
 
 export const addTknTo = async (safe: string, value: number, tokenContract?: any) => {
   const web3 = getWeb3()
-  const accounts = await promisify(cb => getWeb3().eth.getAccounts(cb))
+  const accounts = await web3.eth.getAccounts()
 
   const myToken = tokenContract || await getFirstTokenContract(web3, accounts[0])
   const nativeValue = await toNative(value, 18)