消息签名

// Tronlink-v4.11.0
// 链接
<a href='tronlinkoutside://pull.activity?param={}'>Sign message</a>

// request parameter
{
  "url": "https://justlend.org/#/home",
  "callbackUrl": "http://3.12.131.175:7777/api/tron/v1/callback",
  "dappIcon": "https://test/icon.png",
  "dappName": "Test demo",
  "protocol": "TronLink",
  "version": "1.0",
  "chainId": "0x2b6653dc",
  "loginAddress": "TSPrmJetAMo6S6RxMd4tswzeRCFVegBNig",
  "signType": "signStr",
  "message": "abc",
  "action": "sign",
  "actionId": "50554861-4861-41c4-adf3-abf36213f843"
}

// callback parameter
{
  "actionId": "50554861-4861-41c4-adf3-abf36213f843",
  "code": 0,
  "id": 2001871012,
  "message": "success",
  "signedData": "0xffcac5731d9f70a58e5126f44c34b9356ccb9bef53331e33ddab84bb829adc1b77df24362348f8d46e506b489b4af4496600799b173e708faf1b9db99da9d13c1b"
}