{
  "manageEntity": {
    "action": "Save",
    "entityId": "2030367713",
    "entityType": "Track",
    "nonce": "0x9b654e085f6c2cd285e2e409e022a5eaca1c10a27cdbd6f587a42cf6c0ae2485",
    "signature": "0x0b2586ea32b50a132f46d70da83bb2eb15899629467d31d624da661a29a57e8878d58bce795af6773815708d8b86c4bfb21fda18d7818bd7791eb79d00c6e20d1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}