{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54238",
    "entityType": "User",
    "nonce": "0xe1c6df706930ed1e81e1844ce36e720f84f62bebb8daabdd2a9db179d73fe910",
    "signature": "0x2fab2704f58371dda335b62076b28807655c9062f19cd868ce89c5e68188edf11275c337f623ea5c0ccb665191fc88761c0a24eb15bd7e5143cbbc73f89e41041c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}