SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    5790, 33723, 2803, 3568, 5715, 5716, 
    17265, 3868, 41340, 3567, 3869, 5717, 
    5990, 47655, 27359, 5789, 34555, 47922, 
    47921, 41343, 47896, 31638, 47924, 
    3870, 114, 47923, 1582, 33312, 31633, 
    31632, 3287, 3286
  )

Query time 0.00196

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 (5790,33723,2803,3568,5715,5716,17265,3868,41340,3567,3869,5717,5990,47655,27359,5789,34555,47922,47921,41343,47896,31638,47924,3870,114,47923,1582,33312,31633,31632,3287,3286)"
        }
      }
    ]
  }
}