SELECT 
  cscart_products.* 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    64822, 62061, 61489, 64781, 64757, 64906, 
    64735, 64776, 60815, 64793, 62669, 
    64785, 64847, 64751, 64900, 64789, 
    64871, 64963, 64857, 65091, 64848, 
    64659, 65522, 65672
  )

Query time 0.00066

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": 24,
      "filtered": 100,
      "attached_condition": "cscart_products.product_id in (64822,62061,61489,64781,64757,64906,64735,64776,60815,64793,62669,64785,64847,64751,64900,64789,64871,64963,64857,65091,64848,64659,65522,65672)"
    }
  }
}

Result