如何将数据放入EnvoyFilter拦截的请求体中？

我正在尝试这样做，但它不起作用并且不显示任何错误。

apiVersion: networking.istio.io/v1alpha3
kind: EnvoyFilter
metadata:
  name: eva-decrypt-data
  namespace: eva
spec:
  configPatches:
    - applyTo: HTTP_FILTER
      match:
        context: ANY
        listener:
          filterChain:
            filter:
              name: "envoy.http_connection_manager"
      patch:
        operation: INSERT_BEFORE
        value:
          name: envoy.lua
          typed_config:
            "@type": "type.googleapis.com/envoy.config.filter.http.lua.v2.Lua"
            inlineCode: |
              function envoy_on_request(request_handle)
               local buffered = request_handle:body()
               buffered:setBytes("新的请求体数据")