{
  "manageEntity": {
    "action": "Create",
    "entityId": "1355592932",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1355592932,\"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\":\"少女には世界はまだ早かった\",\"duration\":235,\"audio_upload_id\":\"247c8604e2c8b0ed8c1758fbe843ded3\",\"track_cid\":\"baeaaaiqsebvoeluralsq6v4k7cloomccrhj3w26baufhga5r5dhvzog3yntgg\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsebyvgjkspghhdmrlaqrpuedkr77i6yvpmsp5irng3v2lfd7d3kt7k\",\"orig_filename\":\"少女には世界はまだ早かった.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\":\"F minor\",\"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": "0xdf5f5094b5faa0cd5118d5bcdc785c3316c6118eb4703ed1c66cb46d9554ed56",
    "signature": "0x08c5e1f3a822c5033c1c7916c6dd7fcf1a30f46958ab2cc7f844918d439407e004c8697cb2cf3c5d7e5c4a3238cbae04cc8d9777018f413a8482129188af8dd91c",
    "signer": "0x749c79C88202c35aEb047D355394D7bdeF1e960c",
    "userId": "266636478"
  }
}