{
"manageEntity": {
"action": "Save",
"entityId": "53374814",
"entityType": "Track",
"nonce": "1794073039722377642",
"signature": "0xa69e039f8e42a41eaa684394b0c6915603b90a46ffadd0c71cc8dd84c3ddccf95cdd0b79dfc12b2eecd45472b23734114de6d6843b3712c95fefe33d20c0c7821b",
"signer": "0x21d5faff5a8e6B5F54Ad5077B9B630DFf5f08989",
"userId": "691624308"
}
}