SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    3869, 27359, 47922, 47921, 41343, 47896, 
    47924, 47923, 35782, 5784, 40445, 22172, 
    3871, 41293, 17259, 1716, 40446, 5786, 
    41339, 1975, 48980, 43824, 31729, 2873, 
    2854, 1538, 3713, 2305, 40449, 2857, 
    48235, 15322
  )

Query time 0.00151

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 (3869,27359,47922,47921,41343,47896,47924,47923,35782,5784,40445,22172,3871,41293,17259,1716,40446,5786,41339,1975,48980,43824,31729,2873,2854,1538,3713,2305,40449,2857,48235,15322)"
        }
      }
    ]
  }
}