### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

Sending a message with body:
`"&quot;&quot;"`
is received on the consumer side with body:
`""""`

### Expected Behavior

Sending a message with body:
"&quot;&quot;"
is received on the consumer side with body:
"&quot;&quot;"

### 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`)

Running localstack in docker desktop on Mac using helm chart

https://localstack.github.io/helm-charts
version 0.3.7
Image version: 0.14.3

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



### Environment

```markdown
- OS: macOS Monterey
- LocalStack: 0.14.3
```


### Anything else?

_No response_
result_receive = aws_client.sqs.receive_message(
                QueueUrl=queue_url, MaxNumberOfMessages=10
            )
            for j in range(3):
                assert result_receive["Messages"][j]["Body"] == f"message-{j}"
        receive_and_check_order()
        time.sleep(timeout + 1)
        receive_and_check_order()
    @pytest.mark.aws_validated
    def test_fifo_queue_send_message_with_delay_seconds_fails(
        self, sqs_create_queue, snapshot, aws_client
    ):
        queue_url = sqs_create_queue(
            QueueName=f"queue-{short_uid()}.fifo",
            Attributes={"FifoQueue": "true", "ContentBasedDeduplication": "true"},
        )
        with pytest.raises(ClientError) as e:
            aws_client.sqs.send_message(
                QueueUrl=queue_url, MessageBody="message-1", MessageGroupId="1", DelaySeconds=2
            )
        snapshot.match("send_message", e.value)
    @pytest.mark.aws_validated
    def test_fifo_queue_send_message_with_delay_on_queue_works(self, sqs_create_queue, aws_client):