{
  "manageEntity": {
    "action": "Save",
    "entityId": "63990",
    "entityType": "Track",
    "nonce": "0xcc4fab946f771cc8203ff5c7bae69276190f6f2406e335274718949cea2ab8a7",
    "signature": "0x5822b2f5586ff8f48cf35708bd1e1c655d92c42fe3b08210dbc569629871090d0fcd07f0c1f608db801ccc530cb99c42eb230d40c4dafcd503cd9b1a50f3fb511b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}