How to use Google Home + Blynk with ESP8266 { without " IFTTT " }

Projects made with Blynk
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For now, I’ve web socket connection with iot.sinric.com from my esp8266, but how to add a device in the Google home app?
In the google home app, I see: [test] Sinric, and I tried to log in, it says: “successfully linked your [test] Sinric account”, but after that I still see [test] Sinric under “add new” section, and I don’t have “linked services” section in the app at all.

My code on esp8266 (websocket part)

void webSocketEvent2(WStype_t type, uint8_t * payload, size_t length) {
switch(type) {
case WStype_DISCONNECTED:
  isConnected = false;    
  Serial.printf("[WSc] Webservice disconnected from sinric.com!\n");
  break;
case WStype_CONNECTED: {
  isConnected = true;
  Serial.printf("[WSc] Service connected to sinric.com at url: %s\n", payload);
  Serial.printf("Waiting for commands from sinric.com ...\n");        
  }
  break;
case WStype_TEXT: {
    Serial.printf("[WSc] get text: %s\n", payload);
    // Example payloads

    // For Switch  types
    // {"deviceId":"xxx","action":"action.devices.commands.OnOff","value":{"on":true}}
    // https://developers.google.com/actions/smarthome/traits/onoff
    // {"deviceId":"xxx","action":"action.devices.commands.OnOff","value":{"on":false}}

    DynamicJsonBuffer jsonBuffer;
    JsonObject& json = jsonBuffer.parseObject((char*)payload); 
    String deviceId = json ["deviceId"];     
    String action = json ["action"];
    
    if(action == "action.devices.commands.OnOff") { // Switch 
    Serial.printf("Got command to control lights from sinric.com ...\n"); 
      
        String value = json ["value"]["on"];
        Serial.println(value); 
        
       // ====== Is it ok to call my functions here, like I did? and how to do it correctly ?
        if(value == "true") {
            changeMainLight(96, 200);  // my function to control light, it means turn ON
        } else {
           changeMainLight(0, 200);    // my function to control light, it means turn OFF
        }
    }
    else if (action == "test") {
        Serial.println("[WSc] received test command from sinric.com");
    }
  }
  break;
case WStype_BIN:
  Serial.printf("[WSc] get binary length: %u\n", length);
  break;
}

It says “Waiting for commands from sinric.com” so I think it works, but I still don’t know how to control it.