{
  "manageEntity": {
    "action": "Create",
    "entityId": "558987714",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":558987714,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":false,\"play_count\":false,\"remixes\":true},\"genre\":\"Electronic\",\"isrc\":null,\"is_unlisted\":true,\"iswc\":null,\"license\":null,\"mood\":\"Empowering\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"title\":\"teraz ja ft grazyna zarko\",\"duration\":285,\"audio_upload_id\":\"491449916e5e44bc3455a87de4efdb98\",\"track_cid\":\"baeaaaiqsecb5wrq3rmzx4hhthewhbwoz3eg6zrnyq6gmqoqn4otzqlkzfw4v6\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsedy766og52edseccvlyivl2xr5hy5ypxnuxzzgz3qsbpbqum5adpu\",\"orig_filename\":\"lecmy paniedzieju alt.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":120,\"is_custom_bpm\":false,\"musical_key\":\"C minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":842595758,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqseaunensmmarhlqmqyy2knikfelu6aldxsotm2ajeyuvguxpctjxwm\"}}",
    "nonce": "0x3ccf6770f8183352b306c47291979c70140d23d2025333ed8eb1dc18aca78b45",
    "signature": "0x0e2b3b354f5708ff558ba62419d6bcc6b82ca0a5e6ffd2a1c6f36ddd0c480b294b6cdd90b7d395dc16397ec9d521c52dae511b9055e49b2ddd0bfded47c6a7031b",
    "signer": "0xe1A52D940ed80CE8E7ac7cA37B96F6F07Eec5245",
    "userId": "842595758"
  }
}