public void setLastAuthenticatedEntity(String lastAuthenticatedEntity) {
        this.lastAuthenticatedEntity = lastAuthenticatedEntity;
    }
<p>
The ARN of the authenticated entity (user or role) that last attempted to access the service. Amazon Web Services
does not report unauthenticated requests.
</p>
<p>
This field is null if no IAM entities attempted to access the service within the <a href=
"https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies_access-advisor.html#service-last-accessed-reporting-period"
>tracking period</a>.
</p>

@param lastAuthenticatedEntity
       The ARN of the authenticated entity (user or role) that last attempted to access the service. Amazon Web
       Services does not report unauthenticated requests.</p>
       <p>
       This field is null if no IAM entities attempted to access the service within the <a href=
       "https://docs.aws.amazon.com/IAM/latest/UserGuide/access_policies_access-advisor.html#service-last-accessed-reporting-period"
       >tracking period</a>.
aws-java-sdk-iam/src/main/java/com/amazonaws/services/identitymanagement/model/ServiceLastAccessed.java