{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54166466",
    "entityType": "User",
    "nonce": "0x3d5f35cd89fa8d90ed955bf807b911f1e4fd513ca8facbf5cc0692376f250817",
    "signature": "0x11a37e092421feea60b730e663ae5b18e565df21f215a3df380dadc092b9166845e40f5faea08f43e04c56b73e7a5f6e386bd0b21b7690df6f884ec16ddf7c321b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}