UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gbxPf9ypwS+R8vtIzvAyrZQN6APQg50EMxJAsZz0RA0=' 
WHERE 
  key_id = '49d5aabd5cb1a80f96e36f17208b4e28559eef92e24a4f0ad383c3252ab35094' 
  AND (
    token = 'gbxPf9ypwS+R8vtIzvAyrZQN6APQg50EMxJAsZz0RA0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )