{
  "manageEntity": {
    "action": "Update",
    "entityId": "1634233061",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1634233061,\"owner_id\":266636478,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":false},\"genre\":\"Electronic\",\"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\":\"2026-10-19T10:05:41.000Z\",\"title\":\"魂の終わり\",\"duration\":358,\"audio_upload_id\":\"f76b4c6ba43f6d69e843352b577a8550\",\"track_cid\":\"baeaaaiqsec3leyfp3fxan5ejmkxctlcdxcrn6vrekzadw6c7kycjoqa2tpv3u\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsecyzma7phxnhsxjuidqjpngpkbymvkm6zbdxrz72hkz3zo75dagaa\",\"orig_filename\":\"魂の終わり.mp3\",\"is_downloadable\":true,\"is_original_available\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":151,\"is_custom_bpm\":false,\"musical_key\":\"A flat\",\"is_custom_musical_key\":true,\"comments_disabled\":false,\"is_scheduled_release\":false}}",
    "nonce": "0x5837237d0b1267428957a0806cb7fcaa83102107a49d3086c55051e97cfb0422",
    "signature": "0xc4049d9a4214dfe88a1c240b28554965cd7a5d311b73c1844c0016b125051d4f6896bffcbbcd65c6b5a40238aed23e86d886f7be4648aadb64c43b23e67cb00b1c",
    "signer": "0x749c79C88202c35aEb047D355394D7bdeF1e960c",
    "userId": "266636478"
  }
}