{
  "manageEntity": {
    "action": "Update",
    "entityId": "1415206138",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":1415206138,\"owner_id\":266636478,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":false},\"genre\":\"Electronic\",\"isrc\":null,\"is_unlisted\":false,\"iswc\":null,\"license\":null,\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"collaborators\":[],\"is_download_gated\":false,\"download_conditions\":null,\"release_date\":\"2026-10-19T10:05:41.000Z\",\"title\":\"冷たい太陽と月の光\",\"duration\":446,\"audio_upload_id\":\"e5d082ef1f616ac3653a024afbaa865a\",\"track_cid\":\"baeaaaiqsearwf5cq3jjfe3p5fxfzbyaqru6fmh3spqbqzwie2j3qnppjrx35w\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqsecxdvsflh57j27ho7bxfu3a4q7m7jcbjas2nj4zbsdkamdqvfwsbs\",\"orig_filename\":\"冷たい太陽と月の光.mp3\",\"is_downloadable\":true,\"is_original_available\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":151,\"is_custom_bpm\":false,\"musical_key\":\"E flat\",\"is_custom_musical_key\":true,\"comments_disabled\":false,\"is_scheduled_release\":false}}",
    "nonce": "0x38d66655c4c7b9ed8c08fed6a542e76ba72c06f5e77d61a53c3bcf61aa18f973",
    "signature": "0x4f9a4908d5e0b53328a214dd9a50e071d95e5451167231212b4b1a7996988279066221c47672ffbc8aebfe177815a111dfac04d0b12e12bc8878c2bd22f018291c",
    "signer": "0x749c79C88202c35aEb047D355394D7bdeF1e960c",
    "userId": "266636478"
  }
}