SELECT 
  1 
FROM 
  cscart_june_setuplock_keys 
WHERE 
  key_id = '3fcd88e283132d5a2c4d3719590a3df01d81d2dc21eb130cc769c2cab2c287b5' 
  AND token = 'yJ2W7J+v+VZxgovJmYq/2ifejH6Ok5OlTUJuP/G08MA=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00024

JSON explain

{
  "query_block": {
    "select_id": 1,
    "message": "no matching row in const table"
  }
}