### Is there an existing issue for this?

- [X] I have searched the existing issues

### Current Behavior

When calling 

`cloudWatchClient.EnableAlarmActions(&cloudwatch.EnableAlarmActionsInput{AlarmNames: alarmNames})`

with golang I receive a SerializationError with bytes in the error message saying: 

`<!DOCTYPE HTM |UBLIC "-//W3C//DTD HTML 3.2 Final//EN">.<title>500 Internal Server Error</title>.<h1>Internal Server Error</h1>.<p>The server encountered an internal error and was unable to complete your request. Either the server is overloaded or there is an error in the application.`

I believe this is a bug, since other cloudwatch operations like "DescribeAlarms" work flawlessly with the same client.

### Expected Behavior

I expected the call to go through without any errors

### How are you starting LocalStack?

With a `docker run` command

### Steps To Reproduce

Start localstack, create alarms and call cloudwatch "EnableAlarmActions"

### Environment

_No response_

### Anything else?

_No response_
"""
        :return: array with Transformers, for cloudformation api.
        """
        return [
            TransformerUtility.key_value("ChangeSetName"),
            TransformerUtility.key_value("StackName"),
            KeyValueBasedTransformer(_resource_name_transformer, "resource"),
            KeyValueBasedTransformer(_change_set_id_transformer, "change-set-id"),
        ]
    @staticmethod
    def iam_api():
        """
        :return: array with Transformers, for iam api.
        """
        return [TransformerUtility.key_value("UserName"), TransformerUtility.key_value("UserId")]
    @staticmethod
    def s3_api():
        """
        :return: array with Transformers, for s3 api.
        """
        return [
            TransformerUtility.key_value("Name", value_replacement="bucket-name"),
            TransformerUtility.jsonpath(
                jsonpath="$..Owner.DisplayName",