### 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_
     "NotificationConfigurationDeprecated": "NotificationConfiguration",
        "GetBucketOwnershipControlsOutput": "OwnershipControls",
        "GetBucketPolicyStatusOutput": "PolicyStatus",
        "GetBucketReplicationOutput": "ReplicationConfiguration",
        "GetBucketRequestPaymentOutput": "RequestPaymentConfiguration",
        "GetBucketTaggingOutput": "Tagging",
        "GetBucketVersioningOutput": "VersioningConfiguration",
        "GetBucketWebsiteOutput": "WebsiteConfiguration",
        "GetObjectAclOutput": "AccessControlPolicy",
        "GetObjectLegalHoldOutput": "LegalHold",
        "GetObjectLockConfigurationOutput": "ObjectLockConfiguration",
        "GetObjectRetentionOutput": "Retention",
        "GetObjectTaggingOutput": "Tagging",
        "GetPublicAccessBlockOutput": "PublicAccessBlockConfiguration",
        "ListBucketAnalyticsConfigurationsOutput": "ListBucketAnalyticsConfigurationResult",
        "ListBucketInventoryConfigurationsOutput": "ListInventoryConfigurationsResult",
        "ListBucketMetricsConfigurationsOutput": "ListMetricsConfigurationsResult",
        "ListBucketsOutput": "ListAllMyBucketsResult",
        "ListMultipartUploadsOutput": "ListMultipartUploadsResult",
        "ListObjectsOutput": "ListBucketResult",
        "ListObjectsV2Output": "ListBucketResult",
        "ListObjectVersionsOutput": "ListVersionsResult",
        "ListPartsOutput": "ListPartsResult",
        "UploadPartCopyOutput": "CopyPartResult",
    }
    def _serialize_r
        self,
        parameters: dict,
        response: HttpResponse,
        shape: Optional[Shape],
        shape_members: dict,
        operation_model: OperationModel,
        mime_type: str,
    ) -> None:
        header_params, payload_params = self._partition_members(parameters, shape)
        self._process_header_members(header_params, response, shape)
        # "HEAD" responses are basically "GET" responses without the actual body.
        # Do not process the body payload in th