{
  "manageEntity": {
    "action": "Save",
    "entityId": "99652",
    "entityType": "Track",
    "nonce": "0x62e0ab1b713e3d197db47779e9e63934b579222af312bc3a4d3d8666ae1ec914",
    "signature": "0x597ac3b6f80b38658149722df3eef796374ebecdc88cc1aa887786247de6f8d2245d0b85494d09a223b96c44c9be271d8d59f1be7e7678ff47b764a6bef336b61b",
    "signer": "0x27204C77Baa4a510c92A96A4ba3661CC53EE568E",
    "userId": "35918963"
  }
}