{
  "manageEntity": {
    "action": "Save",
    "entityId": "1693277927",
    "entityType": "Track",
    "nonce": "0x3ea1811f2baf7a0d72cea676ce2a82e2d6937204bb52417146100c02d06713aa",
    "signature": "0xe83494d548554f446fc26fbb95653f63ad1efacdcbd2c1adbbf525092a7fb53015f96d250faaecfdee28c7ff0d6bda2d9ef366ca9e0e4fbe6ceef49f710d1a291b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}