{
"manageEntity": {
"action": "Save",
"entityId": "699770856",
"entityType": "Track",
"nonce": "1793560827738006728",
"signature": "0x4d0b68545f42233f89cb289ed9a89679287220aaf36bd0bf563cef5b6b9a970d1c15df4b8651c9b43652739db50fdba57a442dd0712a64957e1229775267f19e1b",
"signer": "0x23dF8876fD80368D375d911e3CbDFd15B8e85CB5",
"userId": "827420993"
}
}