{"copyright_id":"0x28d6dddd0d6d1a4bc58c90a2a2325bad8e8c1221af7e74e085344c137598bdce","isrc":"JPKI02211427","name":"どんぐりころちゃん","registered_at":"2026-07-30T14:18:45Z","spotify_id":"1nObiJCYffT6I84LevUD6L","type":"track"}