UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'B3RjtpnJQ9PZiTaOneQ51A5F7sj6bpzNyX4MNOmbYMs=' 
WHERE 
  key_id = '3c9010d68261036217cee6219e17d55c41df3317352288fafbaff8fed085b007' 
  AND (
    token = 'B3RjtpnJQ9PZiTaOneQ51A5F7sj6bpzNyX4MNOmbYMs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )