{
"manageEntity": {
"action": "Save",
"entityId": "919352555",
"entityType": "Track",
"nonce": "1793272607214365773",
"signature": "0x7188ec8c4bb489baf643f04d5a70cea80450871ff9d75f81d7c6524a966103c0006c865aa79507ef12a5815ef3a754c2aedbdf904b5226e32fcf0b3cfbd7a4121c",
"signer": "0x23dF8876fD80368D375d911e3CbDFd15B8e85CB5",
"userId": "827420993"
}
}