Task: Create, update, and get a webinar in GoToWebinar

n8n workflow:
{"nodes":[{"name":"GoToWebinar2","type":"n8n-nodes-base.goToWebinar","position":[930,280],"parameters":{"resource":"webinar","webinarKey":"={{$node[\"GoToWebinar\"].json[\"webinarKey\"]}}"},"credentials":{"goToWebinarOAuth2Api":"GoToWebinar OAuth Credentials"},"typeVersion":1},{"name":"GoToWebinar1","type":"n8n-nodes-base.goToWebinar","position":[730,280],"parameters":{"resource":"webinar","operation":"update","webinarKey":"={{$json[\"webinarKey\"]}}","updateFields":{"description":"Get started with n8n and create your first automation workflow"}},"credentials":{"goToWebinarOAuth2Api":"GoToWebinar OAuth Credentials"},"typeVersion":1},{"name":"GoToWebinar","type":"n8n-nodes-base.goToWebinar","position":[520,280],"parameters":{"times":{"timesProperties":[{"endTime":"2021-03-02T10:00:00.000Z","startTime":"2021-03-02T09:00:00.000Z"}]},"subject":"Getting started with n8n","resource":"webinar","operation":"create","additionalFields":{}},"credentials":{"goToWebinarOAuth2Api":"GoToWebinar OAuth Credentials"},"typeVersion":1}],"connections":{"GoToWebinar":{"main":[[{"node":"GoToWebinar1","type":"main","index":0}]]},"GoToWebinar1":{"main":[[{"node":"GoToWebinar2","type":"main","index":0}]]}}}