Not able to get send curl command on click working

Dear all, this is not really an issue I assume but more a problem on my end that I don't understand the syntax.

On click I'm trying to send a curl POST command to turn off the lights. I'm using the following code for the plugin:
#!/usr/bin/env bash
echo "TEST | color=green"
echo "---"
echo "Lights off | shell='/usr/bin/curl -X POST --header /"Content-Type: text/plain/" --header /"Accept: application/json/" -d /"OFF/" /"http://192.168.1.108:8080/rest/items/lichtDGBuero/"' terminal=true"

I'm using terminal=true for debugging. In the terminal the command is always wrapped in single quotes which is why it wouldn't execute properly I assume.

Last login: Sat Feb 5 15:50:45 on ttys002
martm106@martm106-AJMD6T ~ % '/usr/bin/curl -X POST --header /Content-Type: text/plain/ --header /Accept: application/json/ -d /OFF/ /http://192.168.1.108:8080/rest/items/lichtDGBuero/'
zsh: no such file or directory: /usr/bin/curl -X POST --header /Content-Type: text/plain/ --header /Accept: application/json/ -d /OFF/ /http://192.168.1.108:8080/rest/items/lichtDGBuero/

I've tried replacing with double quotes, escaping etc. but without any luck. Could anyone here help me what the correct code would be in this case? Thanks so much!

Start with the shell plugin command and terminal output included in the issue, focusing on how the curl command is quoted when terminal=true is used. Check the resulting command in the relevant xbar plugin documentation or examples, then verify that clicking the menu item runs the POST request successfully.