{
  "manageEntity": {
    "action": "Create",
    "entityId": "439958286",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":439958286,\"description\":\"Daily Sound Sketch_0806-2026-01\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Experimental Ambient\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Serious\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"experimentalambient,electronicmusic,ambient,logicpro,japan,takeosuzuki\",\"title\":\"Daily Sound Sketch_0806-2026-01\",\"duration\":291,\"audio_upload_id\":\"75bf4d7730d20a026a4ca6d833236cd7\",\"track_cid\":\"baeaaaiqsecpcrhflduooamqol3niht6gp4nobjd3mnqqqk4pnqez4ivknkkgo\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseb4r44hhvjsml5zwo4udhwfjccfwdv4zb7vsaf6fuksev6h76m6dm\",\"orig_filename\":\"sketch_0806-2026-01.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":102,\"is_custom_bpm\":false,\"musical_key\":\"C minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":120157063,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqseajjfg44hzoh7gbelm7tdkqomu4ax6sy73rdhl43flqlres72bwfq\"}}",
    "nonce": "0xe151eb6b90d7512190b9d1b44d3fe788870fe70fb8c2674fe5a64babfbfda5d7",
    "signature": "0x4253b85c6d34708fc05e5ef1b58efa2b8ec83ec4321ccd9f72d5515564b3ad07439cb63a6dd208954556863effbbb7b38587c11375c2298f7ef2829c667490c71c",
    "signer": "0xf98BFBc2E7c5004108cd62110D8BCBe2fd6a2C58",
    "userId": "120157063"
  }
}