{
"manageEntity": {
"action": "Save",
"entityId": "1596037413",
"entityType": "Track",
"nonce": "1792611354561058242",
"signature": "0x8c6ab86542fb0b55b96796de09055e0d00b7e94142f1dc1bfc04e5f58162a9d4415b7b2c88912dcfee35c3d0a95df841d389dbc2ac709a5dedf2859dded049f11b",
"signer": "0xE9e5656ce6F7Fe41FDbCA982901407eB55765cD3",
"userId": "670307808"
}
}