{
  "manageEntity": {
    "action": "Create",
    "entityId": "93255367",
    "entityType": "Track",
    "metadata": "{\"cid\":\"\",\"data\":{\"track_id\":93255367,\"field_visibility\":{\"mood\":true,\"tags\":true,\"genre\":true,\"share\":true,\"play_count\":true,\"remixes\":true},\"genre\":\"Pop\",\"isrc\":null,\"is_unlisted\":false,\"iswc\":null,\"license\":null,\"mood\":\"Peaceful\",\"is_stream_gated\":false,\"stream_conditions\":null,\"allowed_api_keys\":null,\"is_download_gated\":false,\"download_conditions\":null,\"release_date\":\"2026-05-14T02:12:03.000Z\",\"title\":\"ないで頭が一杯\",\"duration\":128,\"audio_upload_id\":\"692859fabe686066497e4c0f7be0327c\",\"track_cid\":\"baeaaaiqseclx5jeq4zxnuf5dvj4psoau7zrmnjelcfcsgmefcnwxn4age4hry\",\"preview_cid\":\"\",\"orig_file_cid\":\"baeaaaiqseb6ixnkmixbts7ceplyc6cjbnl7pc3pe5xllgug2m7if45loqnhwc\",\"orig_filename\":\"K0299_ないで頭が一杯_Mixdown.wav\",\"is_downloadable\":false,\"is_original_available\":false,\"is_playlist_upload\":true,\"ddex_release_ids\":null,\"ddex_app\":\"\",\"parental_warning_type\":null,\"bpm\":107,\"is_custom_bpm\":false,\"musical_key\":\"G flat major\",\"is_custom_musical_key\":false,\"comments_disabled\":false,\"is_scheduled_release\":false,\"owner_id\":851914601,\"audio_analysis_error_count\":0,\"cover_art_sizes\":\"baeaaaiqsebeczdilkqmasltefneafpvvyvfub3readz2erwetsqnemp55qjvc\"}}",
    "nonce": "0xbd4a0fed67a8e14eaea1da21b90d947ee125cde8a709eab036efba7fa7bfddd6",
    "signature": "0x567c8f19916817f09511f5b32adfec95bc4e25ab85969fd94fce638aaca7fe4e45de5a84ae981e13af0977d716a7ad175f154a7b24ab133422d5284690628e2e1b",
    "signer": "0x9a95E87e27E17D9A64b59102A5D563d705e460e6",
    "userId": "851914601"
  }
}