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# Type of request: This is a ...
[x] bug report
[ ] feature request

# Detailed description
Currently when using [software.amazon.awssdk:kinesis:2.15.27](https://search.maven.org/artifact/software.amazon.awssdk/kinesis/2.15.27/jar) and attempting to use [getRecords](https://sdk.amazonaws.com/java/api/latest/software/amazon/awssdk/services/kinesis/KinesisAsyncClient.html#getRecords-java.util.function.Consumer-) we end up getting a general aws client exception `software.amazon.awssdk.core.exception.SdkClientException: Unable to parse date : 1.605283809962E9`. This doesn't happen when using a live kinesis stream.

## Expected behavior
Should be able to get a response from localstack with the correct data.

## Actual behavior
An exception is thrown from inside aws sdk v2 with the message `software.amazon.awssdk.core.exception.SdkClientException: Unable to parse date : 1.605283809962E9`.

# Steps to reproduce
## Command used to start LocalStack
`docker run -d -p 4566:4566 -e "SERVICES=kinesis" localstack/localstack:0.12.2`

## Client code (AWS SDK code snippet, or sequence of "awslocal" commands)
https://github.com/lukecollier/localstack-jvm-aws-sdk-v2



┆Issue is synchronized with this [Jira Task](https://localstack.atlassian.net/browse/LOC-53) by [Unito](https://www.unito.io/learn-more)

import re
import json
import random
import cbor2
from requests.models import Response
from localstack import config
from localstack.utils.aws import aws_stack
from localstack.utils.common import to_str, json_safe, clone, epoch_timestamp, now_utc
from localstack.utils.analytics import event_publisher
from localstack.services.awslambda import lambda_api
from localstack.services.generic_proxy import ProxyListener
ACTION_PREFIX = 'Kinesis_20131202'
ACTION_PUT_RECORD = '%s.PutRecord' % ACTION_PREFIX
ACTION_PUT_RECORDS = '%s.PutRecords' % ACTION_PREFIX
ACTION_LIST_STREAMS = '%s.ListStreams' % ACTION_PREFIX
ACTION_CREATE_STREAM = '%s.CreateStream' % ACTION_PREFIX
ACTION_DELETE_STREAM = '%s.DeleteStream' % ACTION_PREFIX
ACTION_UPDATE_SHARD_COUNT = '%s.UpdateShardCount' % ACTION_PREFIX
STREAM_CONSUMERS = []
class ProxyListenerKinesis(ProxyListener):
    def forward_request(self, method, path, data, headers):