UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UT0wPvXvh4amQVoq7vWqWfEmYHEwImHEaWKFxwUCkOA=' 
WHERE 
  key_id = 'a8b73bd79910c6f4a2e5a45251b885cc6346ce37c084af09c02cb3adbe8fd903' 
  AND (
    token = 'UT0wPvXvh4amQVoq7vWqWfEmYHEwImHEaWKFxwUCkOA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )