Human - Richcard-Standalone w/o suggestions

POST https://{{baseURL}}/v1/gbm/messages

Request Body

{"from"=>"{{google_business_messages_app_id}}", "to"=>"{{conversationId}}", "representative"=>{"avatarImage"=>"https://developers.google.com/identity/images/g-logo.png", "displayName"=>"Sirexa", "representativeType"=>"HUMAN"}, "containsRichText"=>true, "richCard"=>{"standaloneCard"=>{"cardContent"=>{"title"=>"Webex CPaaS", "description"=>"We’re creating a world where enterprises can stay constantly connected to their customers. A world where every interaction is faster and smarter than ever before.", "media"=>{"height"=>"MEDIUM", "contentInfo"=>{"fileUrl"=>"https://www.webex.com/content/dam/wbx/us/images/rebrand/nav-footer/black.png", "thumbnailUrl"=>"https://www.webex.com/content/dam/wbx/us/images/rebrand/nav-footer/black.png", "forceRefresh"=>true, "altText"=>"string"}}}}}, "callbackUrl"=>"", "callbackData"=>"", "correlationId"=>"", "fallback"=>""}

HEADERS