{
  "manageEntity": {
    "action": "Save",
    "entityId": "1093216",
    "entityType": "Track",
    "nonce": "0xfc2b36f7e61d7f6e5fa9f4e29529bc004d68d786485ade535fd47e493d2d30af",
    "signature": "0xaf7c2a6e25796b2e23228ecc95aa09d8790cb10bfbb7e0a57af62e26037673cc696d19b059ce67117a783a132c023c654966e185fe0431e7ad4dd6b7850749131b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}