Trigger to NukiHub MQTT entry

Hello everyone,
I have recently taken my first steps with HA. Everything is working so far.
Now I’m trying to trigger an MQTT event from the Nuki hub.
Under the topic “nuki/lock/log”
the following is published:

[{"index":3,"authorizationId":2550344225,"authorizationName":"NU","timeYear":2024,"timeMonth":6,"timeDay":16,"timeHour":10,"timeMinute":44,"timeSecond":16,"type":"LockAction","action":"Unlatch","trigger":"system","completionStatus":"success"},{"index":4,"authorizationId":181117,"authorizationName":"NU","timeYear":2024,"timeMonth":6,"timeDay":16,"timeHour":11,"timeMinute":1,"timeSecond":5,"type":"KeypadAction","action":"Unlatch","completionStatus":"success"},{"index":5,"authorizationId":181117,"authorizationName":"NU","timeYear":2024,"timeMonth":6,"timeDay":16,"timeHour":11,"timeMinute":1,"timeSecond":18,"type":"KeypadAction","action":"Unlatch","completionStatus":"success"},{"index":6,"authorizationId":181117,"authorizationName":"NU","timeYear":2024,"timeMonth":6,"timeDay":16,"timeHour":11,"timeMinute":4,"timeSecond":16,"type":"KeypadAction","action":"Unlatch","completionStatus":"success"},{"index":7,"authorizationId":181117,"authorizationName":"NU","timeYear":2024,"timeMonth":6,"timeDay":16,"timeHour":11,"timeMinute":6,"timeSecond":39,"type":"KeypadAction","action":"Unlatch","completionStatus":"success"}]

Here I would now like to trigger on authorizationName, type, action of the last entry.

How could I solve this?

value_template: "{{ value_json[4].authorizationName }}"

Same for the other two.

See: https://jsonpathfinder.com/