{
  "manageEntity": {
    "action": "Create",
    "entityId": "50631569",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":50631569,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Experimental\",\"isrc\":\"\",\"is_unlisted\":false,\"iswc\":\"\",\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"\",\"title\":\"Greyhound Antidote\",\"duration\":144,\"audio_upload_id\":\"ba96bf91ff77dfd689344f4e76e36891\",\"track_cid\":\"baeaaaiqseafux3cpbcxpzi52c7ftgg2tfhtduysacxlkvlx6ijcfevhdfk66s\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsecklod6uak736hzdjhuw2mvbwrwrsnmccn7vyyqyhmsrf6aq6edai\",\"orig_filename\":\"Greyhound Antidote.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":128,\"is_custom_bpm\":false,\"musical_key\":\"G minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":831559707,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsebe7wrnmwbazrvynsygjrjbapbel6rnwusfb74fklczamrupqqbus\"}}",
    "nonce": "0x02f54df2809d5f31a1fecfe831cfa8f920893c84fc1521cf72e5aac121d2cc06",
    "signature": "0xf6b281a0f2e53d9753d60172dbcaf8f62a71e002ba05572fe2415c3d471c1b575496387eef7849bce9f567f8d3617dfb811d47564e04facb6df882811a54172c1c",
    "signer": "0x044E8a0c52D10A25362559515A840D07C1a88EB7",
    "userId": "831559707"
  }
}