Get Xiaohongshu PGY note blogger square

Searches Xiaohongshu note bloggers on the Pugongying (PGY) blogger square, with about 60 filters in 7 groups. Send keyword (empty to filter only), search_type, column (34 sort fields) and sort; similar_user_id finds similar bloggers and works with the filters. Each result has about 140 fields such as price and median reads.