UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'CTcbOPQ4eCtS5K4wo7FXKVn7cErdnelLlHtJc2lz/GU=' 
WHERE 
  key_id = '0ae5e4c3850f631e734def5765053d6a055094a8ae9373f4f80a00dd6c20d71c' 
  AND (
    token = 'CTcbOPQ4eCtS5K4wo7FXKVn7cErdnelLlHtJc2lz/GU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )