SELECT 
  cscart_products.*, 
  cscart_products.ebay_status, 
  cscart_products.ebay_template_id 
FROM 
  cscart_products 
WHERE 
  cscart_products.product_id IN (
    22367, 22368, 22369, 22370, 22371, 22372, 
    22373, 22374, 22375, 22376, 22377, 
    22378, 22379, 22380, 22381, 22382
  )

Query time 0.00038

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": 16,
      "filtered": 100,
      "index_condition": "cscart_products.product_id in (22367,22368,22369,22370,22371,22372,22373,22374,22375,22376,22377,22378,22379,22380,22381,22382)"
    }
  }
}