{
  "manageEntity": {
    "action": "Create",
    "entityId": "1538249043",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1538249043,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":false,\"play_count\":false,\"remixes\":true},\"genre\":\"Hip-Hop/Rap\",\"isrc\":null,\"is_unlisted\":true,\"iswc\":null,\"license\":null,\"mood\":\"Peaceful\",\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"title\":\"Track 09\",\"duration\":125,\"audio_upload_id\":\"982980de9be8a968a833ba27948d6107\",\"track_cid\":\"baeaaaiqseazf6tmohzmsims65foc6uzgs2y3dpchqmf5auhanx7o4ui3mfmxa\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseabrb4y54umw6uhvfsucnzvetuf24aj2pkmvelaclvtzbpdpl64i2\",\"orig_filename\":\"Track 09.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":90,\"is_custom_bpm\":false,\"musical_key\":\"G minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":886743978,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqseak35rrcrq3sfnpjk4nrj4wsosa5gj35cvnvrrh4kzevfsgh7jq6c\"}}",
    "nonce": "0x42ad25d1ce6b866e74ada2384120970bdee733c8dd61847d0bba1f7f510d8692",
    "signature": "0x161ae548d46c6481e30f3ace0fd61e783d9b77aa12224ae1a97a77c98952a32e55074a1247d0d3dca920c0814ecdb8d8e4b779ee6dd8a42d2b3757ab0dc285f71c",
    "signer": "0x78f292dEC4d54a094Ee9dE4b02D6E0eE44660A0B",
    "userId": "886743978"
  }
}