curl --request POST \
  --url https://api.vantage.sh/v2/user_feedback \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "message": "<string>"
}
'

{
  "token": "<string>",
  "message": "<string>",
  "created_by_token": "<string>",
  "created_at": "2023-01-01T00:00:00Z"
}