UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'vR9sX/b0gvikYqgNlE9yKucWR5RrUvcn7BZ8iutaOYs=' 
WHERE 
  key_id = '21d1530923340e727012f98721e2a4409eaa2231c0037419fd7772f56791fd1c' 
  AND (
    token = 'vR9sX/b0gvikYqgNlE9yKucWR5RrUvcn7BZ8iutaOYs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )