UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Dn5ze/rNqR+oUXeIFVKzpsDhggavJuu8WmYzOhsTqo4=' 
WHERE 
  key_id = '8740435f21e8eaab75ac9fdcefa30fb85731f18dcf79d2aa759220f01fdc8726' 
  AND (
    token = 'Dn5ze/rNqR+oUXeIFVKzpsDhggavJuu8WmYzOhsTqo4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )