{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x2578b0d038c488e09a30e0da8145bce28e29c3af301c96c2d2e8c3175ed4ea65",
    "signature": "0x67da611e1306bc183b60ed0d9ff0b0a8a0dbaa46447762e34b60ca3c46bf6996170cc3b43152900584c2498b17dcd4516ed16257734ebf53a6dc250e0acf39841b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}