tronVerifySignature.js

const PRIVATE_KEY = ""

const TronWeb = require('tronweb')
const tronWeb = new TronWeb({
    fullHost: 'https://api.trongrid.io',
    privateKey: PRIVATE_KEY
  })
const ethers = tronWeb.utils.ethersUtils;

var hexStr2byteArray = function(str) {
  var bytestrs = [];
  for(var i=0;i<str.length;i+=2) {
    bytestrs.push(str.substr(i,2));
  }
  return eval("[0x" + bytestrs.join(",0x") + "]");
}

//message: hash
async function start(message, signature){
  message = message.replace(/^0x/, '');
  let messageBytes = [
      ...ethers.toUtf8Bytes(`\x19TRON Signed Message:\n32`),
      ...hexStr2byteArray(message)
  ];
  let messageDigest = ethers.keccak256(messageBytes);

  let r = signature.slice(0, 66);
  let s = '0x' + signature.slice(66, 130);
  let v = '0x' + signature.slice(130, 132);

  //contract used to recover address using `ecrecover`
  let contract = await tronWeb.contract().at('TBSrTu8zPdH5FnKm57ijpXkZN3KQ4LEyLa');
  let hexAddress = await contract.recoverAddr(messageDigest, v, r, s).call();

  console.log(`Hex address: ${hexAddress}`)
  console.log(`Address: ${tronWeb.address.fromHex(hexAddress)}`)
}