UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Waxgu+s/1FIdb65QrBrQ5OE7H2OGMN7kR0d/gTeuLdo=' 
WHERE 
  key_id = '9c942d8cf3c0d95ed659e3a64cdad77835b29cbd57e859f59b38b363bb50808e' 
  AND (
    token = 'Waxgu+s/1FIdb65QrBrQ5OE7H2OGMN7kR0d/gTeuLdo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )