{
"manageEntity": {
"action": "Save",
"entityId": "813769283",
"entityType": "Track",
"nonce": "0x4663250f2384a208059a83d137c1e437232a03f2983567e9f0846fb103adeee2",
"signature": "0x7e4311a40dad0a10b14a6781e25bebc626d6c3a046f5ed013d806d5fd66b585243fca2ce122168213ce5b0cc6c757183b1dc64f8dab5d9e64fe599065ea4692a1b",
"signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
"userId": "614212580"
}
}