SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    357, 354, 103, 155, 763, 15, 1223, 304, 
    1130, 337, 1135, 366, 1137, 1138, 1271, 
    1192, 1173, 142, 143, 369, 1313, 20, 
    16, 144, 145, 97, 52, 291, 76, 313, 1213, 
    1348, 1349, 801, 604
  )

Query time 0.00147

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_products",
      "access_type": "range",
      "possible_keys": ["PRIMARY"],
      "key": "PRIMARY",
      "key_length": "3",
      "used_key_parts": ["product_id"],
      "rows": 35,
      "filtered": 100,
      "index_condition": "cscart_products.product_id in (357,354,103,155,763,15,1223,304,1130,337,1135,366,1137,1138,1271,1192,1173,142,143,369,1313,20,16,144,145,97,52,291,76,313,1213,1348,1349,801,604)"
    }
  }
}