curl --request POST \
  --url https://api.hubapi.com/settings/v3/users/ \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "email": "<string>",
  "sendWelcomeEmail": true,
  "firstName": "<string>",
  "lastName": "<string>",
  "primaryTeamId": "<string>",
  "roleId": "<string>",
  "secondaryTeamIds": [
    "<string>"
  ]
}
'

{
  "email": "<string>",
  "id": "<string>",
  "roleIds": [
    "<string>"
  ],
  "superAdmin": true,
  "firstName": "<string>",
  "lastName": "<string>",
  "primaryTeamId": "<string>",
  "roleId": "<string>",
  "secondaryTeamIds": [
    "<string>"
  ],
  "sendWelcomeEmail": true
}