UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '9pqyH6Lqtw32xvpxKuQcp8hHNryx0xz1naCRtmxgMQU=' 
WHERE 
  key_id = '42e68f99974a51d5581455d004847550480f95b5f162164b3893517496f1a55e' 
  AND (
    token = '9pqyH6Lqtw32xvpxKuQcp8hHNryx0xz1naCRtmxgMQU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )