{
  "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": "0xd19627bbb2705f457b7e8ca9c4d30d1d494f32d5a3e280e18ad8f2aba21e78a0",
    "signature": "0x4973f6e165cb5096fc371c2f67cc9d84e2f6d09cadb7276de4f08c2eb6e7dc144fd1d60a0d24225e5f846d94c0f0d39848288205746d0cc80b8364241add5c451b",
    "signer": "0x749c79C88202c35aEb047D355394D7bdeF1e960c",
    "userId": "266636478"
  }
}