How to add SSO to an azure bot on microsoft teams

Question

Followed steps documented to enable bot sso

1. Created a bot.
2. Added Microsoft Teams under Channels.
3. Under Configuration added the messaging endpoint. e.g. (https://myproxy.proxyapp.com/teams/app/activity).
4. Generated a client secret for the Microsoft app id.
5. Added "https://token.botframework.com/.auth/web/redirect" as the Redirect URI for Web platform under Authentication for my Microsoft App.
6. Under API Permissions for my Microsoft App added "email offline_access openid profile". "User.Read" was available by default.
7. Under Expose an API added "api://botid-{Microsoft app id}". Added scope "access_as_user". Added web (1fec8e78-bce4-4aaf-ab1b-5451cc387264) and desktop (5e3ce6c0-2b1f-4285-8d4b-75ee78787346) client applications.
8. In the Manifest file for my Microsoft app updated "accessTokenAcceptedVersion": 2.
9. For my bot added an OAuth Connection as below
10. 
11. Created an app on Microsoft Teams and associated my Micorsoft App Id as the bot id. Attached is the manifest for my Microsoft Teams app.

When I install this app to Microsoft Teams the bot is shown in the chat tab which is expected. Further the document says as a 1st step
"The bot sends a message with an OAuthCard that contains the tokenExchangeResource property.". How can I achieve this?

When I type "Hi" for the very 1st time on the bot I receive the below JSON at my messaging endpoint

{"text":"hi","textFormat":"plain","attachments":[{"contentType":"text/html","content":"<div>hi</div>"}],"type":"message","timestamp":"2021-10-05T18:27:21.5454867Z","localTimestamp":"2021-10-05T23:57:21.5454867+05:30","id":"1633458441515","channelId":"msteams","serviceUrl":"https://smba.trafficmanager.net/in/","from":{"id":"29:1kR5UGDG5iTFhsVadKAadeYuzsLEhMYK_YFxb7_Y62nAilJVLIMiPtC8oLrGGyK7wZTaFc8-jlVxJq3q0bpoBMw","name":"Ashish Sood","aadObjectId":"3836************************be046"},"conversation":{"conversationType":"personal","tenantId":"1734*************************bb8ecf","id":"a:1xMOdsbv02hfl2J4GUGA7-WemaLGCOxFlzsSNcQ9StjIMAAKn64tJ0zxKk25b02NMTl3rc7nbNffMZGXVYfraNIDKnptC01oeLRv7Ngh2WMCyOrmBT2KaDleQXSU2s4MY"},"recipient":{"id":"28:18c9**********************02b9","name":"NOW_Virtual_Agent_SSO_Bot"},"entities":[{"locale":"en-GB","country":"GB","platform":"Mac","timezone":"Asia/Calcutta","type":"clientInfo"}],"channelData":{"tenant":{"id":"1734************************b8ecf"}},"locale":"en-GB","localTimezone":"Asia/Calcutta"}

How do I use this JSON to complete the 6 steps mentioned at
auth-aad-sso-bots