Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'c65b67a30362daa8e969f0584f6c8dea7be40b7ff1eb5ebda406b5c007472f8f' 
  AND token = '40xZ+I8kor+UC09fOy0aWvRnJr6KzN9Jel3hRkS7khw=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00029

JSON explain

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