### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

Im using AWS SDK v3
We use the `GetTopicAttributesCommand` to validate topic existence (there is not other way to do it), then we check the error code and error message.

When trying to get attributes of a topic by ARN with lockstack, it returns error with different error message than AWS:

```ts
{
    Code: 'NotFound',
    Message: 'Topic with arn <MY ARN> not found',
    message: 'Topic with arn <MY ARN> not found'
  }
```

The original AWS error

```ts
{
  Type: "Sender",
  Code: "NotFound",
  Message: "Topic does not exist",
  message: "Topic does not exist"
}
```

### Expected Behavior

Lockstack should return exact same error structure as AWS cloud


```ts
{
  Type: "Sender",
  Code: "NotFound",
  Message: "Topic does not exist",
  message: "Topic does not exist"
}
```

### How are you starting LocalStack?

With the `localstack` script

### Steps To Reproduce

```ts
  const client = new SNSClient({ })
  try {
    await client.send(new GetTopicAttributesCommand({ TopicArn: '<ARN TO TEST>' }))
  } catch (err) {
    console.log(err)
  }
  ```
  
  Run this both with AWS and lockstack and u will see the diff


### Environment

```markdown
- OS: osX
- LocalStack:latest
```


### Anything else?

_No response_
call_moto(context)
        store = self.get_store(account_id=context.account_id, region=context.region)
        
        subscription = store.subscriptions.get(subscription_arn)
        
        if subscription["Protocol"] in ["http", "https"]:
            
            
            subscription_token = short_uid()
            message_ctx = SnsMessage(
                type="UnsubscribeConfirmation",
                token=subscription_token,
                message=f"You have chosen to deactivate subscription {subscription_arn}.\nTo cancel this operation and restore the subscription, visit the SubscribeURL included in this message.",
            )
            publish_ctx = SnsPublishContext(
                message=message_ctx, store=store, request_headers=context.request.headers
            )
            self._publisher.publish_to_topic_subscriber(
                publish_ctx,
                topic_arn=subscription["TopicArn"],
                subscription_arn=subscription_arn,
            )
        store.topic_subscriptions[subscription["TopicArn"]].remove(subscription_arn)
        store.subscription_filter_policy.pop(subscription_arn, None)
        store.subscriptions.pop(subscription_arn, None)
    def get_subscription_attributes(