How to query redshift SUPER for non empty objects

**Context:** I have a column called event_properties which has a lot of values of {} which is a redshift SUPER datatype. A lot of values are of empty object such as: **Objective:** Filter out values that aren't an "empty object" **What I've Tried**: - casting as ::text, will result in null values - the len (length) function is not supported for SUPER type **What I'm trying to accomplish:** (the queries below don't work, but should demonstrate what I'm trying to accomplish)

select event_properties from native_app_events where event_properties::text != '{}'
select event_properties from native_app_events where len(event_properties) > 5