UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'SXO3gEnlqCuNf6kDQoBqNTimLDARYJNrd5ZG9qYc+eM=' 
WHERE 
  key_id = '906044edf83051cecade391a6b372cac078e210adf0d894e9edb11b9bcbac276' 
  AND (
    token = 'SXO3gEnlqCuNf6kDQoBqNTimLDARYJNrd5ZG9qYc+eM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )