{
  "manageEntity": {
    "action": "Save",
    "entityId": "85230",
    "entityType": "Track",
    "nonce": "0xd9dec2eb5b78d757923cc30d2e601c4deb8ca5c161357ea8b10742f8883071b1",
    "signature": "0x48c1fd7dac99f873601da9185222e4f89ec72eb8e5efbba7600cf92d11c52b91308e8a41c9c4c17eeaf2879bf4f76f4b8d937328f34a3d950a5ca29fca1d25ba1b",
    "signer": "0x283a6Fd0bE176865B404dfc3B2805D3a2701d62e",
    "userId": "484365174"
  }
}