{
  "manageEntity": {
    "action": "Create",
    "entityId": "1760766296",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1760766296,\"description\":\"Pixabayからダウンロード: https://pixabay.com/music/beats-dark-dungeon-game-hiphop-20241015-252251/\",\"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,\"mood\":\"Other\",\"is_stream_gated\":false,\"stream_conditions\":null,\"is_download_gated\":false,\"download_conditions\":null,\"tags\":\"genxbeats\",\"title\":\"[フリービート] Dark Dungeon Game Hiphop 20241015\",\"duration\":172,\"audio_upload_id\":\"e519664e393d42ac95260ebf2bb4532a\",\"track_cid\":\"baeaaaiqseccuzmsxi4gcybsv56gvsfftx6vk6pjnmxy74cvo22l6oufy5tr7a\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseb6pri5porzs46umxzptnt446qm4l4uvvaarpdigpbpoxfy42rzda\",\"orig_filename\":\"01 Dark Dungeon Game Hiphop 20241015.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":137,\"is_custom_bpm\":false,\"musical_key\":\"A flat minor\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":70026,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsedzllr5psgs2ujz6cqpsyfwrb7tj44sih3uyqv5lncdlhpa7uwubk\"}}",
    "nonce": "0x2f6a44e3b7556954642d91b7d7d182108f9a3538a1ab49b191b9c1ce0bc747ac",
    "signature": "0x395014df961d740dc514131f1384a02353e22fb5c6e9caf74e67f82aa641514a3816f82432ffd364a9a605cb7316eb82dbf8e3559a9300854e024c65610e63311b",
    "signer": "0x5Bd2B55f9E919abFFCC7853cd54ABf716372E6Fc",
    "userId": "70026"
  }
}