UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MLh4yKv/tVXjk6rVhIFGbTo7xBPlUYpXEFky4WsqJxQ=' 
WHERE 
  key_id = 'e8e236163adba1ed683b8a97d0d76721bbd1751d88e807816beaa742f9efefe9' 
  AND (
    token = 'MLh4yKv/tVXjk6rVhIFGbTo7xBPlUYpXEFky4WsqJxQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )