### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

When you publish a message to SNS without a *body* (e.g. only attributes) it succeeds.

### Expected Behavior

Trying to publish a message without a *body* should fail (at least it does when trying to do this in AWS)

### How are you starting LocalStack?

Custom (please describe below)

### Steps To Reproduce

#### How are you starting localstack (e.g., `bin/localstack` command, arguments, or `docker-compose.yml`)

using Java testcontainers...

#### Client commands (e.g., AWS SDK code snippet, or sequence of "awslocal" commands)

```bash
#!/bin/sh
 
queue_arn=$(awslocal sqs create-queue --queue-name $QUEUE_NAME --output text)
echo "Queue ARN: $queue_arn"

topic_arn=$(awslocal sns create-topic --name $TOPIC_NAME --output text)
echo "Topic ARN: $topic_arn"

subscription_arn=$(awslocal sns subscribe \
    --attributes RawMessageDelivery=true \
    --topic-arn "$topic_arn" \
    --protocol sqs \
    --notification-endpoint "$queue_arn" \
    --output text)
echo "Subscription ARN: $subscription_arn" 
```


### Environment

```markdown
- OS: OSX 11.5.2
- LocalStack: 0.13.0
- Docker Desktop: v20.10.8
```


### Anything else?

_No response_
"""Fix account ID in request payload. All external-facing responses contain our
        predefined account ID (defaults to 000000000000), whereas the backend endpoint
        from moto expects a different hardcoded account ID (123456789012)."""
        return aws_stack.fix_account_id_in_arns(
            data,
            colon_delimiter="%3A",
            existing=TEST_AWS_ACCOUNT_ID,
            replace=MOTO_ACCOUNT_ID,
        )
    def return_response(self, method, path, data, headers, response):
        
        super(ProxyListenerSNS, self).return_response(method, path, data, headers, response)
        if method == "POST" and path == "/":
            
            data = aws_stack.fix_account_id_in_arns(data, colon_delimiter="%3A")
            aws_stack.fix_account_id_in_arns(response)
            
            search = r"<entry><key>[^<]+</key>\s*<value>\s*None\s*</[^>]+>\s*</entry>"
            response_regex_replace(response, search, "")
            
            req_data = urlparse.parse_qs(to_str(data))
            req_action = req_data["Action"][0]