{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "257420589",
    "entityType": "User",
    "nonce": "0x6e1d01f8799e38bc3af7c529668e28cc9cfc8161e886169e3a3737e547e592c2",
    "signature": "0x98e60cf63e6db930072e4973cca716c83e1e9c2b7c2f5a901a2214eaa453a68175f7c62a5316b1b538c0fa84b454d30633ef597f446d2b030f2df4175b23f67f1c",
    "signer": "0xdEc12eC3F7972dB51907501aF18eb17FBa37a413",
    "userId": "211416595"
  }
}