{
  "manageEntity": {
    "action": "Create",
    "entityId": "820207611",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":820207611,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Rock\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Brooding\",\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"Weightless Horizons\",\"duration\":201,\"audio_upload_id\":\"f6b4a5a523de179ced079c8749f3fcea\",\"track_cid\":\"baeaaaiqsebtig543zt2c63aeyhdah6zq5zhe35fo6m4xwx2iikhlgdnozgylu\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsedlgfhnwh3we73fy3rxfhu6vj3jwmten6gdhq7gcfuyolnps2777o\",\"orig_filename\":\"Weightless Horizons.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":93,\"is_custom_bpm\":false,\"musical_key\":\"E minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":387870391,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqseaw3pxsa7ehdhoz6r7ii4ngdq5rixzut5zwfdjzcdak4vyqedwahw\"}}",
    "nonce": "0x597dc5dabf85019d9dae6160c45caa3ea183f44e94992070d6848fb6346c490e",
    "signature": "0x67368dcedb95fc32ca749e4f0df4e5dfaaebb8fade1f48469f04faddca51ce613e908ba2360ddaf147eeeb4caec9c2fc24a28e20c648048aa2a8cdfd3938eea81c",
    "signer": "0xf2A3959FD8c093454867658F3230042b9388B84B",
    "userId": "387870391"
  }
}