{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "216497",
    "entityType": "User",
    "nonce": "0x9aa0ed3e908c8523db202fd4abc1f2fb14aa88c91f293b2298e1ba3c5ec0b563",
    "signature": "0x39db42ac2b07ecc09d582b0abe797b47113aa3025d88e281473a3020627dc7dd79d7db755a5cf76e727134d6dd694f903e435706f4b481a228c0a37c285fd4d81b",
    "signer": "0xc97A6025Ad8c7Ba1a35Ef7E3A3b88ABc8b2013BF",
    "userId": "666092734"
  }
}