UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zK6n2PP7Ibzzc9B28REk8xfKpjgpgb5J7MGzrqoPuoM=' 
WHERE 
  key_id = '68a5d507802160e3e8e17404ba831fbb1ffb0e04e7e001c2fbca028a0cdf6c76' 
  AND (
    token = 'zK6n2PP7Ibzzc9B28REk8xfKpjgpgb5J7MGzrqoPuoM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )