UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'j+SvgYlqnp1SJGp09kvtk3xOEboSO2tRksnPoEzN0cY=' 
WHERE 
  key_id = 'b2de1841c9ca648e387f6ec20221ae02144cba42114c57a1afb389e6fbab9384' 
  AND (
    token = 'j+SvgYlqnp1SJGp09kvtk3xOEboSO2tRksnPoEzN0cY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )