{
  "manageEntity": {
    "action": "Create",
    "entityId": "1908676358",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1908676358,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Symphonic Metal\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"Crimson Echo - Beyond Goodbye\",\"duration\":288,\"audio_upload_id\":\"2e08525a3e22015d0487a89f97a1c3fd\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsedqzst6ladzklsdyt5diuhjruvwnysptdwrym4hmtjqayopt5q64k\",\"orig_filename\":\"Crimson Echo - Beyond Goodbye.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":146,\"is_custom_bpm\":false,\"musical_key\":\"B flat minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":460692842,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqseb25xhan5vzmod5zx47bhhkd6xffwdztcoafcvulsyeohfsepwx36\"}}",
    "nonce": "0x8623c09281f0e0c6f05613cda2e11039b189af2459cc9d7ad4b0e889a4eba558",
    "signature": "0x264990a19973a6b62cf8c579e3838c3b534c796f4fa6464de071328a75e62d376851c152dfcfd21be7520d6b389067f568adf5b6646b3002dccd08a4b5fdc3451b",
    "signer": "0xE92B30ef20734795CF0471Ecf7e3725c78D905B4",
    "userId": "460692842"
  }
}