UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'veLPxU/6NDvfoQhg4bUPdISl0/jX6wAco7KsyuVqvYI=' 
WHERE 
  key_id = '900c3787e3060f8bd7cf1969d49118595d018ea9521b5257758d13ba6cdcfb90' 
  AND (
    token = 'veLPxU/6NDvfoQhg4bUPdISl0/jX6wAco7KsyuVqvYI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )