{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd30f013e1360cf9f0046069f26bc0f0859fb4dcbe51ef0fd5907ae9d240cca24",
    "signature": "0xca0a85567808c78b943b4c76e41badc957102dcac9479d58baf59a3e20f0211363cb6c55f6ce27c98f317c366da9a777bb7d2662948f872d1b25dd049eea1dc61b",
    "signer": "0x7Ab9762f6ff8B90573F96d200B82a59e9476817E",
    "userId": "473989947"
  }
}