{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x043a6421f9bf10d1f1a2da7c0ca98a316a21d5ebe4f36817cf1b974cb796a168",
    "signature": "0xd2f5ec563bf78a93e1d59e1d40e4dc46d0aaf2e4ce74233c4e46242b782faab326423856c78de47c33e84acaf11b64fbfec04be0b2de2992c34fce40eceb97611c",
    "signer": "0x84B42609E987DD0953e02498E61987fB833B7C92",
    "userId": "887547386"
  }
}