UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'WJFCUaYcqMqGryl+feWuTY0GDc7qJHlMjo9BhHuwWRE=' 
WHERE 
  key_id = '2dc76a06e8fef77a98876c9eefd74aa019835b93e0862ee3d7b626b9c19fdbd9' 
  AND (
    token = 'WJFCUaYcqMqGryl+feWuTY0GDc7qJHlMjo9BhHuwWRE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )