Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = '72c4c8bd300464d0e253b6bdcd91d1d334a9d439299c2350846e049ff46ab80f' 
  AND token = 'SnWecqDlRR9yzZ2youBXU5cy91Lct7Gzx8+N+WrPNQo=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00045

JSON explain

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