> web3.eth.sign(web3.utils.soliditySha3("xyz"), "0x00a329c0648769A73afAc7F9381E08FB43dBEA72", "testing").then(console.log);
Promise {
  _bitField: 0,
  _fulfillmentHandler0: undefined,
  _rejectionHandler0: undefined,
  _promise0: undefined,
  _receiver0: undefined }
> 0xbddd506ff736e03c1c25eaefbc7d73ead76c34135bd7d2f0c626735a7246ac612ed1b71915e8e9131ef7b0711ac2cfef62cbef2e22d4c1cce8f273fd285240cb1b

[Step 1] Address: 0x00a329c0648769A73afAc7F9381E08FB43dBEA72
[Step 2] Message Signature Hash: 0xbddd506ff736e03c1c25eaefbc7d73ead76c34135bd7d2f0c626735a7246ac612ed1b71915e8e9131ef7b0711ac2cfef62cbef2e22d4c1cce8f273fd285240cb1b
[Step 3] Enter the original Message that was signed: xyz

x19Ethereum Signed Message:n32xyz
x19Ethereum Signed Message:n320x9dd2c369a187b4e6b9c402f030e50743e619301ea62aa4c0737d4ef7e10a3d49
x19Ethereum Signed Message:n329dd2c369a187b4e6b9c402f030e50743e619301ea62aa4c0737d4ef7e10a3d49
x19Ethereum Signed Message:n32ÒÃi¡´æ¹Äð0åCæ0¦*¤Às}N÷á
=I