{
"manageEntity": {
"action": "Save",
"entityId": "565371824",
"entityType": "Track",
"nonce": "1792404614257185153",
"signature": "0xacc59009e717c6df3d7c22dd865c25c8df22b7fa349c038e7b031850f92a880b47e72f115fe5670326a7d0f7af297d6aaaaaff177c0f03b8c119cbc5b6dbd8a01c",
"signer": "0x1007e09532BE90331E035838A9E2E0700bB9741a",
"userId": "329513359"
}
}