SELECT 
  * 
FROM 
  cscart_logos 
WHERE 
  type = 'mobile' 
  AND layout_id = 41 
  AND style_id = 'Dark_Blue' 
  AND company_id = 1 
  AND storefront_id = 0

Query time 0.00022

JSON explain

{
  "query_block": {
    "select_id": 1,
    "table": {
      "table_name": "cscart_logos",
      "access_type": "ref",
      "possible_keys": ["type"],
      "key": "type",
      "key_length": "102",
      "used_key_parts": ["type", "company_id"],
      "ref": ["const", "const"],
      "rows": 1,
      "filtered": 100,
      "index_condition": "cscart_logos.`type` = 'mobile'",
      "attached_condition": "cscart_logos.layout_id = 41 and cscart_logos.storefront_id = 0 and cscart_logos.style_id = 'Dark_Blue'"
    }
  }
}