SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    180, 18, 16, 9, 10, 24, 189, 190, 245, 239, 
    238, 23, 22, 25, 19, 65, 64, 62, 134, 135, 
    74, 73, 71, 75, 72, 255, 21, 70, 76, 30, 
    246, 29
  )

Query time 0.00349

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 (180,18,16,9,10,24,189,190,245,239,238,23,22,25,19,65,64,62,134,135,74,73,71,75,72,255,21,70,76,30,246,29)"
        }
      }
    ]
  }
}