curl --request POST \
  --url https://sis.sumvin.com/v0/organisation/{org_id}/members \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "<string>",
  "email": "jsmith@example.com"
}
'

{
  "_links": {
    "self": {
      "href": "<string>",
      "method": "GET",
      "templated": false,
      "description": "<string>"
    },
    "organisation": {
      "href": "<string>",
      "method": "GET",
      "templated": false,
      "description": "<string>"
    }
  },
  "member": {
    "id": "<string>",
    "name": "<string>",
    "email": "<string>",
    "status": "<string>",
    "created_at": 123
  }
}