UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'f53UnjpnjzSPy/Y2VEKydw3zPwl0q3lklBGIYoLBVwk=' 
WHERE 
  key_id = 'a4c7ebeb684a161c4f347cf023446f615262ff8079b5c3040bd562b7d14c6f75' 
  AND (
    token = 'f53UnjpnjzSPy/Y2VEKydw3zPwl0q3lklBGIYoLBVwk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )