{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "620307004",
    "entityType": "User",
    "nonce": "0xf9007e4a1f060124de9987219c84fc458d13e254f39b08a5bb05f97d4dc5ab86",
    "signature": "0xf44dad35f77d834815d59d8c9397870a6e0838985af80e840af4a54e9445747312d6a1affcb99c765102b8f003c6608160268e44e814dd61f21eac6f1931539d1c",
    "signer": "0x42cB1e20D724BD902Af64cd85c700BE6118500bD",
    "userId": "47154652"
  }
}