UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'nn527zQv4ZMLs+lzvHlXxXDt4265ccYzEvoPytq/nck=' 
WHERE 
  key_id = '4dfd77825a93e378614be7c052905fd0302a6de650d7d74644cdfca58bd81f59' 
  AND (
    token = 'nn527zQv4ZMLs+lzvHlXxXDt4265ccYzEvoPytq/nck=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )