{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x8bd8ddd2dbff1d60f27cfc336196bb062fe38ee28c25a949692cb68b63d5034d",
    "signature": "0x018c63c8b1bcad597f1b4d1fb785b24953b8724b22383e2fcfaf24af4d25dc574dca62b82e4383b73da2b8c1247e9db4045a634e0d657fe88b2c5a9fa004de711c",
    "signer": "0x90A9206Df4cA22A1ad24bfB7F1b639Aaa812Ac58",
    "userId": "266782887"
  }
}