{
"manageEntity": {
"action": "Save",
"entityId": "38672837",
"entityType": "Track",
"nonce": "1792358890768697222",
"signature": "0x63b5dd18fb2acaf5c7ea5777a36286eb4f86a1ecd90fdfaf22438e6330943f4a5c98413d405845e3effa1753b278a7a9001846af644795b7ed693d504cf159f61c",
"signer": "0x23dF8876fD80368D375d911e3CbDFd15B8e85CB5",
"userId": "827420993"
}
}