{
"manageEntity": {
"action": "Save",
"entityId": "1686018527",
"entityType": "Track",
"nonce": "0xa39ad80cc7f0cc0c9f9d2e01a909b5ebbd4d2e79e6e596bb47c652be747b6a30",
"signature": "0x5f5e68eb367d51f1b39bf178510026ac314d1636ad24ceba622fcabec81cb610521d6648e9a7d37efadab30200c42c096ee6eafe23031eaf8cfbada9d5a41b111c",
"signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
"userId": "77551267"
}
}