How can I pass job parameters to a dbt task?

[jabori]

I have a dbt task that will use dynamic parameters from the job: {"start_time": "{{job.start_time.[timestamp_ms]}}"}

My SQL is edited like this:
select 1 as id
union all
select null as id
union all
select {start_time} as id

This causes the task to fail. How can I pass the start_time parameter correctly?