Send mqtt message between 2 Edgex's

Hello,

I followed the instructions of https://docs.edgexfoundry.org/Ch-ExamplesAddingMQTTDevice.html.
Everything working fine. Using the export-registration service i can see the values in cloudmqtt.com.

Now i want to send these values to a second EdgeX instance. Is there any guide how to do that?
I tried some things but not working. I added a mqtt-device to the second EdgeX instance
like the example of the link above.
From first Edgex using export-registraton service i POST to http://localhost:48071/api/v1/registration :
{“name”:“MyMQTTEndpoint1”,“addressable”:{“name”:“MyMQTTTopicAddress1”,“protocol”:“TCP”,“address”:“192.168.1.13”,“port”:1883,
"topic":“DataTopic”},“format”:“JSON”,“filter”:{“deviceIdentifiers”:[“MQ_DEVICE1”]},“enable”:true,“destination”:“MQTT_TOPIC”}

Where 192.168.1.13 is the ip that second Edgex and mosquitto broker, running.
The second can receive values through mqtt in this format (as explained in example) :

’{“name”:“MQ_DEVICE”,“cmd”:“randnum”,“randnum”:“100”}'

So in the first Edgex i use a device profile that accept a String and send values to it in that format :
’{“name”:“MQ_DEVICE1”,“cmd”:“randnum1”,“randnum1”:"{‘name’:‘MQ_DEVICE’,‘cmd’:‘randnum’,‘randnum’:‘100’}"}'

So the first Edgex receive a String ( {‘name’:‘MQ_DEVICE’,‘cmd’:‘randnum’,‘randnum’:‘100’}) that all that string i want to send it (through export-service) to second mosquitto broker to send the value 100 to second Edgex.

Is my logic right?

Thank you very much

See my reply is slack channel.