{
  "manageEntity": {
    "action": "Save",
    "entityId": "5017",
    "entityType": "Track",
    "nonce": "0xd7027cfc964ea40a11793939f1e8c3d4d46670e57a3f51818afa1c3fa8c06767",
    "signature": "0x6988298305d7b8b4e3b1e1513d6ab08291bd61fc53ad5c60661c36fb95406cb408dc1645b32b17d40cc6a9393f59b11b257c9141c3875a334eedc8509a6f48961b",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}