curl --request POST \
  --url https://api.acornops.dev/admin/v1/workspaces/{workspaceId}/members \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "reason": "<string>",
  "ticketRef": "<string>"
}
'

{
  "workspaceId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "userId": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "role": "<string>",
  "email": "jsmith@example.com",
  "displayName": "<string>",
  "roleTemplate": {
    "key": "<string>",
    "displayName": "<string>",
    "capabilities": [
      "<string>"
    ],
    "protected": true,
    "sortOrder": 123,
    "description": "<string>"
  },
  "joinedAt": "2023-11-07T05:31:56Z"
}