{
  "manageEntity": {
    "action": "Save",
    "entityId": "2083747189",
    "entityType": "Track",
    "nonce": "0x3f9c326aefaf2f75186fbbf88b539c4456e22771fe9c679485b65b389fda6c7e",
    "signature": "0xbdc8c3bf0587f522b81dcd5e4748044dfc246c587a13c4976fb4de6c670cb6c84d60fd66e94c15d2378738a57df93b4d43806af3a73c2a45f924bea8c32e92241c",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}