.deploy.static.akamaitechnologies.com is not an AAD endpoint. Akamai is known for being a CDN, so it's most likely that your application is trying to retrieve some data from some API or website, and in turn the server/api is being hosted by a CDN hosted by Akamai.
It depends on how your application is developed, although possible that the connection is checking for digital signatures, I highly doubt it. We can't answer what your application is doing as we didn't develop the app, I suggest following up with the party that developed the application for further clarity.