UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'sCxfwa/XCqDBu25KuTRFa1gfuLKPS4om24YVJREjMIY=' 
WHERE 
  key_id = '6dc33858a83af3e54251840889faae08286a4bd49511e2d4457db6d810b14b69' 
  AND (
    token = 'sCxfwa/XCqDBu25KuTRFa1gfuLKPS4om24YVJREjMIY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )