UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Hm3LZymMmty83kLISslE1tU5AP6KzUEzIUO/lQYwh0I=' 
WHERE 
  key_id = '3a21f525f4625f189fdeb79f6edeb73b853cc8b61d971a766c9f48b44d5ea7b1' 
  AND (
    token = 'Hm3LZymMmty83kLISslE1tU5AP6KzUEzIUO/lQYwh0I=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )