UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'AyOB9fA7XnAUFQj3ZpLLFvFxA5lXChqDswG1jAbucZI=' 
WHERE 
  key_id = '50171c24489f91a146b87b7c2ab47e98f9bb337963056f03db803cce8f44954a' 
  AND (
    token = 'AyOB9fA7XnAUFQj3ZpLLFvFxA5lXChqDswG1jAbucZI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )