{
  "manageEntity": {
    "action": "Create",
    "entityId": "2049698504",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":2049698504,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Electronic\",\"isrc\":null,\"is_unlisted\":false,\"iswc\":null,\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"release_date\":\"2026-10-06T12:43:36.000Z\",\"title\":\"行ってきます\",\"duration\":142,\"audio_upload_id\":\"24bcce12ce6d6121427bf6bc4725fd12\",\"track_cid\":\"baeaaaiqseaifldhs6wjqpzpmnu3357l2ihsut2yetlppp7seoe67lfirgsjae\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseabdjzbiquknts5y63f4u6wnpil36lj34tyjtu5pgbrwsih3z6fkq\",\"orig_filename\":\"行ってきます.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":151,\"is_custom_bpm\":false,\"musical_key\":\"D major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":266636478,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsedfvdb2cjgi4q4j7srfbqeqkraanxybuuhkg64kvo6znqxwhqmr6c\"}}",
    "nonce": "0xd0e5edba80cb823aaf23fef3a9876946f0b002ffd79979373b097571834fcea0",
    "signature": "0xe2920f13f649b80038ceb11fd8e8fd94bc1d1a7d70eafd34a0fe68c5a3990e87067ac08f6ef534ccd15936484d41288b8dde62496147fcc768c4c25558a891ae1b",
    "signer": "0x749c79C88202c35aEb047D355394D7bdeF1e960c",
    "userId": "266636478"
  }
}