Hi Uma,
a 302 response indicates a re-direct, which is not necessarily a concern. In this case, the request looks to be going to Google. Our URL destinations which send requests to Google's following endpoint are typically redirected to a separate Google URL:
http://googleads.g.doubleclick.net/
Does this look similar to the request you are observing the 302 response for? If so, this request most likely originates from a Google AdWords destination sending re-marketing data for qualified users. More details available in the documentation: https://experienceleague.adobe.com/docs/audience-manager/user-guide/implementation-integration-guide...
Best,
Curtis Oliver | Technical Support Engineer | Adobe | curtiso@adobe.com