UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'pR2Gwbk9ctqKzuu5SGsbUUWacWb7oKAX6VEkJ/angrA=' 
WHERE 
  key_id = '375eb28676c5c48f1de97009616fa3b7c82a6b2762ebc5a280a71934b35f2e2e' 
  AND (
    token = 'pR2Gwbk9ctqKzuu5SGsbUUWacWb7oKAX6VEkJ/angrA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )