{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "14833",
    "entityType": "User",
    "nonce": "0x78722c371110b207843a538a57b350860d53b0004321d78592fc7496fb3da961",
    "signature": "0x92fd01e62c9efc63dd718355f3c02fb7489c2b212f6051d53bce6a89c13c912972ec7d8213090a09c09a6f94f9dcb1e9c0c4d6b09addd0cbc7565b2238337b001b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}