{
  "manageEntity": {
    "action": "Update",
    "entityId": "798417398",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":798417398,\"owner_id\":392916338,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":false},\"genre\":\"Pop\",\"isrc\":null,\"is_unlisted\":false,\"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\":\"2026-10-16T15:57:46.000Z\",\"title\":\"うささぎ - 馬鹿の伝説\",\"duration\":123,\"audio_upload_id\":\"5027dc89c8242ab53746bb719db21ccc\",\"track_cid\":\"baeaaaiqseahpxcgatmugeepvcgbcfgm4g3hlwqvvrq6dqpx7fsu5px65baofu\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsecl36i5vnr37vsj7dpfyismnk5tsxpfnx5235h4g5g3qywhfe37ju\",\"orig_filename\":\"☆馬鹿の伝説 feat初音ミク_1.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":128,\"is_custom_bpm\":false,\"musical_key\":\"A minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false}}",
    "nonce": "0x8f21c4d568cbdcb0d6a14d56f3e7b851d5c3ae8a05696bd3039462ca1634dee9",
    "signature": "0xd1476f16e298acf46e7c2c5e70f649a54db70fbc9472c8fe9d978ae8f57cd02275e12b0aa9bf4a5e1197b2d23735ca7ff84f74ab325de2640136e9ef6b27d1d61c",
    "signer": "0x654f1b2DCF5eE0f42af2618ba269C1C8f8327BCA",
    "userId": "392916338"
  }
}