{
  "manageEntity": {
    "action": "Update",
    "entityId": "1514436702",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1514436702,\"owner_id\":392916338,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":false},\"genre\":\"Pop\",\"isrc\":null,\"is_unlisted\":true,\"iswc\":null,\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"collaborators\":[],\"is_download_gated\":false,\"download_conditions\":null,\"release_date\":\"2026-10-15T19:45:49.000Z\",\"title\":\"Welza - 花爆弾 \",\"duration\":269,\"audio_upload_id\":\"0430cca013da0231de34ad79fc9daf18\",\"track_cid\":\"baeaaaiqsebdae2eelzrikxwuzw7bajmawnsmpgpalge6llk2qmbm73jrquhmk\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsec3ytkfbbhm4ksnmfchx7kp2fwbyrosvnxtvhixym2duszphakame\",\"orig_filename\":\"☆花爆弾.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":120,\"is_custom_bpm\":false,\"musical_key\":\"E flat\",\"is_custom_musical_key\":true,\"comments_disabled\":false,\"is_scheduled_release\":false}}",
    "nonce": "0xa3ce768a17fea7c412fbc5f68fa09335b1d92c8ea46a19fd8b10817c0d8a5aca",
    "signature": "0xb1b53c91ba1594af6bd6e491eaea1e31328695f468583dfc71775a452a9bd70d35872eeb762761ef1de256a55c78d7496f93668d673680bd689d0cc67cc7903e1b",
    "signer": "0x654f1b2DCF5eE0f42af2618ba269C1C8f8327BCA",
    "userId": "392916338"
  }
}