{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x7db128f61cb0762d0326e8a1cf640784116e99608a6c21a1b52b2af3fd2ff3aa",
    "signature": "0x2ab56bd8c0a6461fc5989218863601e09b99589631fcf6694c1d8b9eeacb4ace309859e455dc77cdaa04aaf3eec9637cb02d1cb13ecfc356e3af3649a07926aa1b",
    "signer": "0x00E71ea3966f25DDf79dC7905323a9ffAfeE0F0d",
    "userId": "609845526"
  }
}