curl --request POST \
  --url https://cockroachlabs.cloud/api/v1/clusters/{cluster_id}/metricexport/cloudwatch \
  --header 'Authorization: Bearer REPLACE_BEARER_TOKEN' \
  --json '{"log_group_name":"example","role_arn":"arn:aws:iam::account:role/ExampleRole","target_region":"us-east-1"}'

{
  "cluster_id": "<string>",
  "role_arn": "<string>",
  "log_group_name": "<string>",
  "target_region": "<string>",
  "user_message": "<string>"
}

{
  "code": 123,
  "details": [
    {
      "@type": "<string>"
    }
  ],
  "message": "<string>"
}