Merge pull request #992 from IABTechLab/sas-UID2-4117-prebid-optout-docs

added example of optout response

Author: ssundahlTTD

docs/guides/integration-prebid-client-side.md

@@ -161,6 +161,23 @@ pbjs.setConfig({
 
 It is possible that the user has opted out of UID2 previously. In this case, the UID2 module respects the user's optout and no UID2 token is generated and collected by Prebid.js.
 
+The following example shows the response for a user that has opted out:
+
+```json
+{
+  identity: 'optout',
+  status: 'optout'
+}
+```
+
+The following example shows the decoded UID2 userId object:
+
+```json
+uid2: {
+  optout: true
+}
+```
+
 ## Checking the Integration
 
 To check that the UID2 module has successfully generated a UID2 token, call `pbjs.getUserIds().uid2`. If a value is returned, a valid UID2 token exists in the UID2 module.