UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UOUuUv3B7yZfjyb0zYz59LVe1a/bYlhoTxlNWhmQi6w=' 
WHERE 
  key_id = 'e21f1af90d5fc9e7a3ce722bdec5376ac36a7bab69f52e53ba0cee8ad2482295' 
  AND (
    token = 'UOUuUv3B7yZfjyb0zYz59LVe1a/bYlhoTxlNWhmQi6w=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )