UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'zZxdLBjuuCsaxDYPsufu6eBikCSSYPKnbcfnAROecuc=' 
WHERE 
  key_id = '45bcc82a9f0a02875dd3aa695989353c731c8b07a266e754773c0bffe8076044' 
  AND (
    token = 'zZxdLBjuuCsaxDYPsufu6eBikCSSYPKnbcfnAROecuc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )