UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'gNSeC+/cDqeL1NSRVcKqlBoILusk5gKS2qysPuYhz+8=' 
WHERE 
  key_id = '6395e1353b63ba09d9d1489f93616d69abacdc893626b587d9884f07ed025f37' 
  AND (
    token = 'gNSeC+/cDqeL1NSRVcKqlBoILusk5gKS2qysPuYhz+8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )