{
"manageEntity": {
"action": "Save",
"entityId": "191008068",
"entityType": "Track",
"nonce": "0xe611ef6d652d52769a168da53667abfb2a9e2a566e0812129a7b85eefbec6c56",
"signature": "0x6b17d082a9962ee4a47254d951eee8375a0de84041eac69aef6a69a5aee593cb04ec5d990b1162ff385ed192479d8fdc1e816481c56525b35537cfe50d6cf8711b",
"signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
"userId": "614212580"
}
}