UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n0lMEv5l70B1WfEKHUDIuuCmTYZwLGy9LbNJapE+PLs=' 
WHERE 
  key_id = '0294e98742ab652154cb2695d7376a6a16b847625bdece13db8a4e09541d1fcc' 
  AND (
    token = 'n0lMEv5l70B1WfEKHUDIuuCmTYZwLGy9LbNJapE+PLs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )