When motion is detected by Blink, set a variable to true in Apilio -

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This applet lets you store presence information in Apilio, so you can know if someone has been detected by your Blink camera and automate any home logic

This Trigger fires when your Blink camera detects motion. Please note: Only the events stored in the Blink cloud are supported by the Blink.

This action will update a boolean variable in Apilio to true.