{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x198dd5a53f0a4a3839522a6e1e3ea4d74ef7d9fd3a2c5671e2b915d07f5bdd86",
    "signature": "0x885f6cd6208eb96c84d8be9514c5ac8a0921b233072af2a8c454e5bef2453cc620acb2910b8b9277bf3785c1b3366b5e74ff41cf8c5f72108b70d6efc9a45bb31b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}