MQTT Engine tag datatype question

I am attempting to send files to Ignition via MQTT engine. What I'm seeing however is that when a subscribed topic is retrieved, it is coming in as a string and losing data. Is there any way to pull in byte data from an MQTT tag?

Our goal is to pull in pictures on demand from small field devices over GSM using MQTT. Thanks!

Hi Richard,

What is the current data type of the tag? In the screenshot, is the output given by data going out from a writeBlocking to the tag?