{
"manageEntity": {
"action": "Save",
"entityId": "572097249",
"entityType": "Track",
"nonce": "1793794936910171921",
"signature": "0xd2c0fbc5b5e8c68c0c23a423d70752d8543c22d577386155b3308620b71ce0b85b9292f404cb0b30aff277c9b5208c2dc2b8177561bf557d9b6a5f2611514dfa1c",
"signer": "0x512F9723ECbDB6Dc537A671b3D2fb35CC68017a4",
"userId": "105562689"
}
}