{
"manageEntity": {
"action": "Save",
"entityId": "1787023688",
"entityType": "Track",
"nonce": "0xec57ddc5f11b29eb34af68872cbe46981fb6214d99a190bef8339a4d173862ee",
"signature": "0x6c500b59383e031a910a714bd5a618e9ba396bdbee56d1200372cefbed61dca32feca2cfd88777f1bb6377926ce58a93b1838926e34d33b73fba2908cdcfb66e1b",
"signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
"userId": "614212580"
}
}