{
  "manageEntity": {
    "action": "Create",
    "entityId": "1307314347",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1307314347,\"description\":\"\",\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Hip-Hop/Rap\",\"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\":\"02_shukubou0823-2\",\"duration\":162,\"audio_upload_id\":\"6cd768fbfe62141a067ef8c89ae8a222\",\"track_cid\":\"baeaaaiqsecle5ujykv3y2pqwues3i3sqbi542j3gyhnesxwa6dydfv65bitsy\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseddalljhhlmrug2zmcurq7qspn3mqwsreglnmik3c6np377ivdd2i\",\"orig_filename\":\"02_shukubou0823-2.mp3\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":120,\"is_custom_bpm\":false,\"musical_key\":\"A flat minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":218692613,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsed7wymzzt4qfjaeo5wumuzuv5lwa7g3dpvmhiuh2qf5x4b7rlgezm\"}}",
    "nonce": "0xd85c5f3e710ca4a553f2eca7370403c197a2c33589d7445277ccaf9c951a72ce",
    "signature": "0x16bb4a2f1abe9b6deb0597c409070180041398aaecd6f4b194cc2381eb43183724ec0c1b8361354a1a4ccb49e52126448a93037795f95dee77c06a5148c4b52c1c",
    "signer": "0x6CDDC7B674Dd0fbE8fB2850B79b97aA2A37Aa071",
    "userId": "218692613"
  }
}