When a subscription is created using cloudformation:
```
"ProfileChangedSubscription": {
      "Type": "AWS::SNS::Subscription",
      "Properties": {
        "Endpoint": {
          "Fn::GetAtt": [
            "ProfileChangedQueue",
            "Arn"
          ]
        },
        "Protocol": "sqs",
        "FilterPolicy": {
          "eventType": [
            "created"
          ]
        },
        "TopicArn": {
          "Fn::ImportValue": {
            "Fn::Sub": "${ProfilesProfilePublishStack}-ProfileChangedTopic"
          }
        }
      }
    }
```

The specified subscription filter policy is not created. When I run `get-subscription-attributes`, I get information about non-existing filter policy:

```
{
    "Attributes": {
        "TopicArn": "arn:aws:sns:us-east-1:000000000000:profile-changed-topic",
        "Endpoint": "arn:aws:sqs:us-east-1:000000000000:profile-changed-queue",
        "Protocol": "sqs",
        "SubscriptionArn": "arn:aws:sns:us-east-1:000000000000:profile-changed-topic:936a58be-525b-4228-bfdb-c4b2f6048e8c",
        "FilterPolicy": "None"
    }
}
```
'StepFunctions::Activity': {
        'create': {
            'function': 'create_activity',
            'parameters': {
                'name': ['Name', PLACEHOLDER_RESOURCE_NAME],
                'tags': 'Tags'
            }
        }
    },
    'SNS::Subscription': {
        'create': {
            'function': 'subscribe',
            'parameters': {
                'TopicArn': 'TopicArn',
                'Protocol': 'Protocol',
                'Endpoint': 'Endpoint'
            }
        }
    },
    'CloudFormation::Stack': {
        'create': {
            'function': 'create_stack',
            'parameters': {
                'StackName': get_nested_stack_name,
                'TemplateURL': 'TemplateURL'
            }
        }
    }
}
def convert_acl_cf_to_s3(acl):