{
  "manageEntity": {
    "action": "Create",
    "entityId": "1775999965",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1775999965,\"description\":\"Emo ballad\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Punk\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"mood\":\"Sensual\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"I know\",\"duration\":231,\"audio_upload_id\":\"56d41c52f8076d3c9d6f131db542f195\",\"track_cid\":\"baeaaaiqseaut74kodqcxtnei4kkygakiamawtmy5ywmdyciyvkvphpzwrsrms\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseas7bp65fzj4h7jazupdwmynteyvodf2sefrohxq5gmdfbru23b72\",\"orig_filename\":\"iknowmas.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":111,\"is_custom_bpm\":false,\"musical_key\":\"D flat major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":629530515,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsedegpv3h4fb6sunwbrzh7c7cmrgljjhxqaqomorftte2bd6rfspvg\"}}",
    "nonce": "0x640ac1afe23c57301328e40e2cc3507d58f3589561c7ea0763dd0bed93caff12",
    "signature": "0x6b9ef05d037c6bb47985b464d66ebd3d3567a3641228de48126312b485f0836532ff3e8b78e00cb0bb2609e5348bd8563fa3a34cb667f3e50abe4556c50e8e681b",
    "signer": "0xA56552Ddf7D4d833c1B3e4f8D727B787d4D1DFFe",
    "userId": "629530515"
  }
}