Sandbox

SELECT 
  1 
FROM 
  cscart_lock_keys 
WHERE 
  key_id = 'd8375d9c1322bc849063358f971a555070ebdfc562089f6a587c1c65f60395ed' 
  AND token = 'RwfI6AaiXqM6W9RqgM4rHn/X9h/fd2vaFZOTAQRFo18=' 
  AND expiry_at > UNIX_TIMESTAMP(NOW())

Query time 0.00019

JSON explain

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