Unity + PLATEAU + Geospatial APIでAR作成時のiOSトークン認証について

Geospatial sample encountered an EarthState error: ErrorNotAuthorized
Google.XR.ARCoreExtensions.Samples.Geospatial.GeospatialController:Update()

// Check earth state.
            var earthState = EarthManager.EarthState;
            if (earthState == EarthState.ErrorEarthNotReady)
            {
                SnackBarText.text = _localizationInitializingMessage;
                return;
            }
            else if (earthState != EarthState.Enabled)
            {
                string errorMessage =
                    "Geospatial sample encountered an EarthState error: " + earthState;
                Debug.LogWarning(errorMessage);
                SnackBarText.text = errorMessage;
                return;
            }

import jwt
import cryptography
import json
import boto3
from datetime import datetime, timedelta

def get_secret(secret_name):
    client = boto3.client(YOUR_SECRET_NAME)
    response = client.get_secret_value(SecretId=secret_name)
    
    if 'SecretString' in response:
        secret = response['SecretString']
        return json.loads(secret)
    else:
        raise ValueError("Failed to retrieve the secret.")

def lambda_handler(event, context):
    # AWS Secrets Managerから秘密鍵の情報を取得
    # TODO: 'YOUR_SECRET_NAME' を適切なSecrets Managerの秘密鍵名に置き換える
    service_account_info = get_secret('plateauAR-key')
    private_key = service_account_info['private_key']
    client_email = service_account_info['client_email']
    current_time = datetime.now() + timedelta(hours=9)  #日本時間にする
    expiration_time = current_time + timedelta(hours=1)
    
    # print (current_time)
    # print (expiration_time)
    
    payload = {
        'iss': client_email,
        'sub': client_email,
        'iat': int(current_time.timestamp()),
        'exp': int(expiration_time.timestamp()),
        'aud': 'https://arcore.googleapis.com/',
    }

    token = jwt.encode(payload, private_key, algorithm='RS256')

    # print (token)
    
    return {'statusCode': 200, 'body': token}

pip install XXX -t ./python/

python3 -m pip install jwt -t ./python/

{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": "secretsmanager:GetSecretValue",
            "Resource": "シークレットマネージャーのARNを入力"
        }
    ]
}

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Networking;
using Google.XR.ARCoreExtensions;
using UnityEngine.XR.ARFoundation;
using UnityEngine.XR.ARSubsystems;

public class SetToken : MonoBehaviour
{
    public ARAnchorManager AnchorManager;

    // Start is called before the first frame update
    void Start()
    {
        //TOKEN取得
        StartCoroutine(FetchTokenAndSet());
    }
   
    IEnumerator FetchTokenAndSet()
    {
        string endpointURL = "先ほどのAWS LambdaのURL";
        UnityWebRequest request = UnityWebRequest.Get(endpointURL);
        yield return request.SendWebRequest();

        if (request.result != UnityWebRequest.Result.Success)
        {
            Debug.LogError("Failed to fetch the token: " + request.error);
            yield break;
        }
        string jwt = request.downloadHandler.text;
        //デバッグ用にプリント（通常はプリントしないほうがいい）
        print("Token :" + jwt);
        
        AnchorManager.SetAuthToken(jwt);
   }
}

Token :eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJwbGF0ZWF5YXItYXBwMkBwbGF0ZWF1LWFyLmlhbS5nc2VydmljZWFjY291bnQuY29tIiwic3ViIjoicGxhdGVheWFyLWFwcDJAcGxhdGVhdS1hci5pYW0uZ3NlcnZpY2VhY2NvdW50LmNvbSIsImlhdCI6MTY5Mzc1MzQ0MSwiZXhwIjoxNjkzNzU3MDQxLCJhdWQiOiJodHRwczovL2FyY29yZS5nb29nbGVhcGlzLmNvbS8ifQ.IpisakX8GsS9j6v_e0DL3UkTE425_T7QuBeufeT5-zppJdpe7a5DsigxTZIdXMR5l_8xm4PSCZpvB70WJYzHGJh_B6AdZGnVUaYc9_DkHJQkcb1mfHW-_mvzZ0RMLn3woNipbHpAVbgUEf54YJhAsnh73zD-88QM2TjUycYMCmtcoDk5P5rmbIAFdq3OJbESWw900VQNrnLfBMz4QQBpT2GvR8fUz-4vJgSbbc11zguY7-8c9YCX_eh94m2xo_MNvu1DW0UdFcCo4dNfV0K4Cq184wRgVby5cjnCAijA3X3I6uyFQtQsFtTFxsjYQXYVziti8EMl0BwE9yIwwjbjmQ
<FetchTokenAndSet>d__3:MoveNext()
UnityEngine.SetupCoroutine:InvokeMoveNext(IEnumerator, IntPtr)

Geospatial sample encountered an EarthState error: ErrorNotAuthorized
Google.XR.ARCoreExtensions.Samples.Geospatial.GeospatialController:Update()

// Check earth state.
            var earthState = EarthManager.EarthState;
            if (earthState == EarthState.ErrorEarthNotReady)
            {
                SnackBarText.text = _localizationInitializingMessage;
                return;
            }
            else if (earthState != EarthState.Enabled)
            {
                string errorMessage =
                    "Geospatial sample encountered an EarthState error: " + earthState;
                Debug.LogWarning(errorMessage);
                SnackBarText.text = errorMessage;
                return;
            }