UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'yIiO6HbHCB0X1us0DdtgSh8rV9avODg3uUfWRYCSo0c=' 
WHERE 
  key_id = '3b16c642859b96bbae91991206a28755ecb3ff260107ac688d175f1f05755919' 
  AND (
    token = 'yIiO6HbHCB0X1us0DdtgSh8rV9avODg3uUfWRYCSo0c=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )