{
  "manageEntity": {
    "action": "Create",
    "entityId": "463684432",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":463684432,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":false,\"play_count\":false,\"remixes\":true},\"genre\":\"Metal\",\"isrc\":null,\"is_unlisted\":true,\"iswc\":null,\"license\":null,\"mood\":\"Aggressive\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"japanese,noisecore\",\"title\":\"Kill A Lot\",\"duration\":71,\"audio_upload_id\":\"8dc7feb344c024d697bd9e47491a776e\",\"track_cid\":\"baeaaaiqsecmlio5i72oayqxl3cu4xvrcs4x3jjg4wzm5jyu4orzxvsp7rdphs\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseasytzgbfqdox2p4szaijclnpxpmlmjeikshby5m3e3ldee5yjwes\",\"orig_filename\":\"Kill A Lot.mp3\",\"is_downloadable\":true,\"is_original_available\":false,\"is_playlist_upload\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":98,\"is_custom_bpm\":false,\"musical_key\":\"A minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":751451,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqseaoflyomv76eruwfqys3sjngduotu2yyg43dx2ja7tnrmag6bczeo\"}}",
    "nonce": "0xc11623f553985bd0e9edf6cedf1167808fe3fb0cbfc04f0a39da036e4c8a91bf",
    "signature": "0x57bc05ff877c801638253b9470f7ab3e0dfda9805869cb26e3c9833beb0521314127ea5f86c0a4fe60ec2903af9bde5b06e0e7835aad3f68905950b2c69b5ed71b",
    "signer": "0x20c238b8C67292B74399B705c8Ba45682d3854D3",
    "userId": "751451"
  }
}