{
  "manageEntity": {
    "action": "Create",
    "entityId": "2006900114",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":2006900114,\"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,\"mood\":\"Tender\",\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"release_date\":\"2026-03-26T18:00:25.000Z\",\"title\":\"變奏的愛之城 (Club Mix)\",\"duration\":213,\"audio_upload_id\":\"723e150231471c64274f7e5a3dcd15f8\",\"track_cid\":\"baeaaaiqsec4lvkdgjkerafhrltxg7wgeb35ieks3cxk4nmin2s2mbs224xfry\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsed5qxa63rcyufihoxcubyawn6oc263ifqc4nktrwe7qmgskn42daq\",\"orig_filename\":\"變奏的愛之城 (Club Mix).wav\",\"is_downloadable\":true,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":130,\"is_custom_bpm\":false,\"musical_key\":\"E minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":111702289,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqseaaxliqxm7dmwt5zvxsc4omecvcv4vzlxmljbakqcvexj6nddhtle\"}}",
    "nonce": "0xed6e430817925eee93c005e90758c6d156b297bb87fa890462c6dcb952e1579b",
    "signature": "0x202e699332732ee9ad375e3e5333c4cf904e8f83115ff9dc1c54af0e0f807e2c28fd962f94c731305c124e8e830881dd1bbc5e433c34b10d6deeaf6a5d6eed351c",
    "signer": "0xbed99520306BB0dDd2790eD133a58c5eC1bFCE31",
    "userId": "111702289"
  }
}