{
  "manageEntity": {
    "action": "Save",
    "entityId": "35158",
    "entityType": "Track",
    "nonce": "0x8e9606fb5d1e52710b616d1aea1e24278609724b074f72c587c7931c6468f018",
    "signature": "0x4b5723aa5ace7b06d0a46a514deb7c6403eeab56ba25ea2bf6414256ad09739651e7e3dbaf16333ecfeb424cc73158bb414661002804634dd06ca956dc365f921c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}