{
  "manageEntity": {
    "action": "Save",
    "entityId": "1715110796",
    "entityType": "Track",
    "nonce": "0x05502d8b4805e5bf880d1ce8505afaee9083775f67692986a90b2395f04e9075",
    "signature": "0x7dd2a94d4287004da429a988d81b3d8857d9453f69a1e4a8edb52e54837a4ad563f27c51dda80798e324211025f4940d7fc800b4e3391533f011e278027aceb31c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}