A system may be configured to request, from a user device, consent for an application server to output one or more messages to the user device. When requesting the consent, the system may output a consent message associated with the application server. The system may receive, from the user device, an indication of consent, the indication being sent by the user device based on the consent message; and enforce, by the consent gateway device, the consent indicated by the user device. When enforcing the consent, the system may allow or disallow application traffic, from the application server, based on the indication of consent. The application traffic may be associated with the user device.