Message with Link does not work

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API Endpoint(s) and/or Zoom API Event(s)

POST (application/json) https://api.zoom.us/v2/im/chat/messages?

{"robot_jid":"@xmpp.zoom.us","to_jid":"@xmpp.zoom.us","account_id":"acc_id","content":{"head":{"text":"I am a header"},"body":[{"type":"message","text":"I am a link","link":"https://zoom.us"}]},"is_markdown_support":true}

Description
Trying to send message with link from example Message with Link. But receives 400 with “Invalid request body format.”

Error?

400 -  (1005 ms): {"code":7001,"message":"Invalid request body format.","result":false}

Reason is is_markdown_support = true

Thank you for your contribution @tolikbotov!