UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u3DZJCl1ftPVI7EDcAvJLjhjryFdau7PzeIkHEryyaU=' 
WHERE 
  key_id = '6befb73c54021c68e9966dc6ef3ebeb07d12722ca6cb218711d7413ce400891c' 
  AND (
    token = 'u3DZJCl1ftPVI7EDcAvJLjhjryFdau7PzeIkHEryyaU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )