SELECT 
  id 
FROM 
  cscart_auction 
WHERE 
  `product_id` = 25285 
  AND `status` = 'A' 
  AND `winner_user_id` = 0 
  AND `buy` = 'no' 
  AND `auto_win` = 1 
  AND last_price > 0

Query time 0.00021

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_auction",
      "access_type": "ALL",
      "rows": 67,
      "filtered": 100,
      "attached_condition": "cscart_auction.product_id = 25285 and cscart_auction.winner_user_id = 0 and cscart_auction.auto_win = 1 and cscart_auction.`status` = 'A' and cscart_auction.buy = 'no' and cscart_auction.last_price > 0"
    }
  }
}