{
"manageEntity": {
"action": "Save",
"entityId": "296388141",
"entityType": "Track",
"nonce": "1787490313183579875",
"signature": "0x3be2e67284b84e78f4f7513d2fb5f1c4ed3500c2d1cc4ec81d5e39493f42bde72ea8ed0d7cb7fd9a96c922aa2f283dc667abd366e39416472cdeb91f447025db1c",
"signer": "0x2cc593FC814461263d282A84286Fd4F72c79562e",
"userId": "175201368"
}
}