{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x3d15fbe261b333d108dbca1d09aaea2c60451a6f7168bcbedb0ac03d37bb0dd1",
    "signature": "0x632c4d2737d4c36330810f2f367c27d629d04d29ce4b611da9cbc55b67911b7b2eae9472f3615c052f09addd729c8a3b5851bc43e375f9a2858ac964bf8480531b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}