UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Dq8kMMNnNqC/ukKVovzEKMtzwmzFC8CBxcGQx2om/1c=' 
WHERE 
  key_id = '18b1acf13d3098645f9b88f5242f931ce27dcfe72531c6f37caa76dd964a5ed1' 
  AND (
    token = 'Dq8kMMNnNqC/ukKVovzEKMtzwmzFC8CBxcGQx2om/1c=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )