{
  "manageEntity": {
    "action": "Save",
    "entityId": "110903044",
    "entityType": "Track",
    "nonce": "0xb92e89081a179a9a823a4d1c0b1b1111215db90b817d89a237b0d89382ba8788",
    "signature": "0x6896262d992dadc7f39f7390ebeb130c168511bed0e5bca3ca094637a56e07c72b53fa1ae0741ddebaa3a293936ea28ffbd73950568241ea83784876e5499c7f1b",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}