{
"manageEntity": {
"action": "Save",
"entityId": "242862100",
"entityType": "Track",
"nonce": "1792834773134072792",
"signature": "0x60c568fe38c78540a94a6a105e96d8b3183612b3060a4a9a7e029fdc4dcc2e87581d4c051559aaecc4771ee900d1f7a5a0f039297f97a2784c29f20b07fa6f671c",
"signer": "0x23dF8876fD80368D375d911e3CbDFd15B8e85CB5",
"userId": "827420993"
}
}