curl --request GET \
  --url https://api.dfns.io/auth/users \
  --header 'Authorization: Bearer <token>'

{
  "items": [
    {
      "username": "<string>",
      "name": "<string>",
      "userId": "us-6b58p-r53sr-rlrd3l5cj3uc4ome",
      "kind": "AccountUser",
      "credentialUuid": "<string>",
      "orgId": "<string>",
      "isActive": true,
      "isServiceAccount": true,
      "isRegistered": true,
      "isSSORequired": true,
      "permissionAssignments": [
        {
          "permissionName": "<string>",
          "permissionId": "<string>",
          "assignmentId": "<string>",
          "operations": [
            "<string>"
          ]
        }
      ],
      "permissions": [
        "<string>"
      ]
    }
  ],
  "nextPageToken": "<string>"
}