{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xe12e0b96cd19a8d4963d06fac7be79db780b3ca403534825de2556a725030a66",
    "signature": "0x889fcb2bda0cc0614beba0c9a787b358fe5a018851ab19c4ed8b7ecf859085d464dd915697c9139e4a32d25e9eeb976e7c5b05adbd92c0d0635685a9c65b08ff1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}