I use the app locative with webhooks and Homey. This is the webhook I use
https://A/api/manager/logic/webhook/locative?tag=Marcelthuis
Probably your webhook should be something like; https://A.connect.athom.com/api/manager/logic/webhook/Plex?tag=Plexplay
Your flow would be something like;
WHEN receiving Webhook, event Plex
AND logic is Plexplay
THEN …
A = your homey id
