{
"manageEntity": {
"action": "Save",
"entityId": "1061385097",
"entityType": "Track",
"nonce": "0x02c44ad481ebedd28b966c6d86a72c63c1cdf74af87c36f678974167010c0fca",
"signature": "0x1d4fa8ec291431608d1d8d12cbe61226aaedff5765b9fc498bac601767c9b9fe69ae83d4bd8045285693cf940e727f8a990ae2ac1161b0ef085cb12bfc93e0ad1b",
"signer": "0x9881bA04eA95d8a4De5594aBC9DBd5c96F38eF34",
"userId": "211307"
}
}