{
  "manageEntity": {
    "action": "Create",
    "entityId": "9322317",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":9322317,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Metal\",\"isrc\":null,\"is_unlisted\":false,\"iswc\":null,\"license\":null,\"mood\":\"Melancholy\",\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"title\":\"Echoes Don't Answer \",\"duration\":243,\"audio_upload_id\":\"5a090e5be783f8bbfc375c566cf790ec\",\"track_cid\":\"baeaaaiqsedlqjxuxdauikw2dp5l5dlt2a3bai63j33ett56trt6jy3jfwqdqm\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseciwn3do6w6jp6xkipyzgfupdwsn5m4ncnmvl72h3p37ngxquaxls\",\"orig_filename\":\"Echoes don't answer.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":107,\"is_custom_bpm\":false,\"musical_key\":\"F minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":256479919,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsedsqkj3aot4llgjlv2ytoy2kve7xxcczb7tx5odmibkdeyjknly62\"}}",
    "nonce": "0x437d39f87942b46cc216e0387934820ffffc19d4b41bc536c7de2e4729a836d9",
    "signature": "0x91a1c6c65662ef487ff73f2a016682a68afd4ee29f97241b3022ef24f34129085cc4402b745335c5d800fa2b6cb292577503ef583f9c1c3376e7cf97cf6a20841b",
    "signer": "0xc4A500E17D812B285447720CCcb7F8eB148c91bd",
    "userId": "256479919"
  }
}