{
  "manageEntity": {
    "action": "Save",
    "entityId": "1717510932",
    "entityType": "Track",
    "nonce": "0x56a5e2b684dcd2648c694f139acc3f795206e69d95f0afa6f8b18a48afa1547d",
    "signature": "0x524840ef861f8afc8e84714167c46183327b3b186abfbe1b85f0ca4034765ae2691cd96b69caaec629cb2b048d71f335e7bfc176865bb20343c4308f2352348e1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}