SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    40802, 3627, 1752, 19207, 40893, 4302, 
    36271, 41616, 42371, 1171, 5764, 4941, 
    1442, 5771, 41410, 5760, 5773, 41942, 
    47253, 1758, 4943, 41411, 5757, 5768, 
    41226, 4903, 40307, 17875, 33135, 2252, 
    45587, 40810
  )

Query time 0.00142

JSON explain

{
  "query_block": {
    "select_id": 1,
    "nested_loop": [
      {
        "table": {
          "table_name": "cscart_products",
          "access_type": "range",
          "possible_keys": ["PRIMARY"],
          "key": "PRIMARY",
          "key_length": "3",
          "used_key_parts": ["product_id"],
          "rows": 32,
          "filtered": 100,
          "index_condition": "cscart_products.product_id in (40802,3627,1752,19207,40893,4302,36271,41616,42371,1171,5764,4941,1442,5771,41410,5760,5773,41942,47253,1758,4943,41411,5757,5768,41226,4903,40307,17875,33135,2252,45587,40810)"
        }
      }
    ]
  }
}