{
  "manageEntity": {
    "action": "Save",
    "entityId": "11696",
    "entityType": "Track",
    "nonce": "0x131602161c88573b08aac63944f03140df52cbd1cddb334be6e3dbcfd8d14a7b",
    "signature": "0x5ead4c439ac0713827575ade025d273f82afcbc8f8feb485e4941a41d78eab31787c0aab7ee761e17fafa82b7b9f43b9187e464a182de7b187a0bb0d6dc1b39f1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}