{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "2194",
    "entityType": "User",
    "nonce": "0x617cc9683baecc2fcfc09fb249cd8bc6e8f1310ac1a47f152f052f778ff82b03",
    "signature": "0xf980d46970e59f6ec0640b2d08cb4eb185fd36af3777419dd3d56acbd8363ed458074217c5dea31fafff1650cc086417beda90601c525411fe5a509f2cfd35c61c",
    "signer": "0x674FFC02F71bdD4bD3Ae60c618579EBDD541E397",
    "userId": "787787230"
  }
}