UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MLlqyLk5tO7433WgJ1onxVK9ZoaIMHrwg8JViPQ7DzQ=' 
WHERE 
  key_id = 'a3921df343a46c23d44ce3520c5f4879680415910f574115011dac979ce8af4f' 
  AND (
    token = 'MLlqyLk5tO7433WgJ1onxVK9ZoaIMHrwg8JViPQ7DzQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )