### 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_
):
    if description:
        description = escape(description)
    target(
        self,
        name,
        namespace,
        metric_name,
        metric_data_queries,
        comparison_operator,
        evaluation_periods,
        datapoints_to_alarm,
        period,
        threshold,
        statistic,
        extended_statistic,
        description,
        dimensions,
        alarm_actions,
        ok_actions,
        insufficient_data_actions,
        unit,
        actions_enabled,
        treat_missing_data,
        evaluate_low_sample_count_percentile,
        threshold_metric_id,
        rule,
        tags,
    )
def create_message_response_update_state(alarm, old_state):