SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    1773, 41429, 856, 3916, 33716, 3917, 
    33717, 36781, 4266, 41422, 33718, 36834, 
    4269, 4270, 4263, 33720, 4262, 36492, 
    41430, 4271, 33719, 33715, 4264, 4272, 
    1776, 4265, 41423, 36494, 4268, 4267, 
    41428, 36496
  )

Query time 0.00295

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 (1773,41429,856,3916,33716,3917,33717,36781,4266,41422,33718,36834,4269,4270,4263,33720,4262,36492,41430,4271,33719,33715,4264,4272,1776,4265,41423,36494,4268,4267,41428,36496)"
        }
      }
    ]
  }
}