SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    1866, 23166, 44922, 3583, 2249, 2296, 
    4914, 47276, 43655, 27079, 4920, 48771, 
    1744, 48070, 33721, 4303, 4308, 34678, 
    5766, 47254, 1743, 49019, 49199, 36270, 
    27077, 35475, 48851, 5774, 48062, 43827, 
    27078, 27076
  )

Query time 0.00842

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 (1866,23166,44922,3583,2249,2296,4914,47276,43655,27079,4920,48771,1744,48070,33721,4303,4308,34678,5766,47254,1743,49019,49199,36270,27077,35475,48851,5774,48062,43827,27078,27076)"
        }
      }
    ]
  }
}