{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0x0fafe0e3acfcba0f366508ec1fcba784dde71a45cec92fe23ec3efea1d4e1499",
    "signature": "0xed6c81feace85799b88fa034aaf01ae87bca31f6f55d5f55699288d2345ea04c6ef748c766a43b12cec6d501eaf10a5af9082b0738b644eafd93671d0f9780411b",
    "signer": "0x257c9f4A9563d6A4a2bF3be7Da1738e167fcF295",
    "userId": "301719964"
  }
}