npm install etherscan-link -S
const etherscanLink = require('etherscan-link')
const networkId = '1'
const account = '0xFDEa65C8e26263F6d9A1B5de9555D2931A33b825'
const accountLink = etherscanLink.createAccountLink(account, networkId)
const hash = '0xa7540793de6b6ca7d3c948a8cc0a163bf107f5535a69353162ea9dec7ee7beca'
const txLink = etherscanLink.createExplorerLink(hash, networkId)