{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x84bb4b9afc1819bcd138b0266ba9657bde5ded5644d55b48cb83f6121104a1bb",
    "signature": "0x1996990023209a1b68cbb6a193a756037e920a95ff693a78348a13cab92813e44cb14c8af91d03aa048b795141dd801b2bbcd3db70509f9fb471c41a89343fbe1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}