In Ableton Live 10, I instantiate Miniraze on a MIDI Track in order to enable MIDI input from my controller keyboard. Then, in the Audio Track that I want to effect, I select the Miniraze MIDI Track under the "Audio To" drop down menu.
The audio routing will default to Miniraze's main external input, but you can change it to Miniraze's side-chain input in the secondary "Audio To" drop down menu if you like.
Finally, in Miniraze itself, make sure that you have selected the External Audio Input somewhere in your voice path (Oscillator Waves, or Mixer level), and then play some notes to allow the envelopes to open up and allow the audio input signal to pass through.