UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'OlEa2VbSDQfoBt92ERV6TTGqPhBLQh7+Y9gsXBpOVNI=' 
WHERE 
  key_id = 'a21f32d2435033ae99a1b9ff196fb66cda244e3a797733ae69d14f1aa45e763d' 
  AND (
    token = 'OlEa2VbSDQfoBt92ERV6TTGqPhBLQh7+Y9gsXBpOVNI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )