curl --request POST \
  --url 'https://api.hubapi.com/conversations/v3/custom-channels/?hapikey=' \
  --header 'Content-Type: application/json' \
  --data '
{
  "capabilities": {},
  "name": "<string>",
  "channelAccountConnectionRedirectUrl": "<string>",
  "channelDescription": "<string>",
  "channelLogoUrl": "<string>",
  "webhookUrl": "<string>"
}
'

{
  "capabilities": {},
  "createdAt": "2023-11-07T05:31:56Z",
  "id": "<string>",
  "name": "<string>",
  "channelAccountConnectionRedirectUrl": "<string>",
  "channelDescription": "<string>",
  "channelLogoUrl": "<string>",
  "webhookUrl": "<string>"
}