Console utility takes data from stdin and prints them line by line to the stdout with formatted form. You can use jinja2 as template engine to customise output.
$ tail -f /var/log/service.log | jsonparser
$ tail -f /var/log/service.log | jsonparser --format template.j2
$ tail -f /var/log/service.log | jsonparser --filter @fields.level=ERROR
[@timestamp] @fields.level @message
$ tail -f /var/log/service.log | jsonparser
[2015-12-15T05:45:39+00:00] INFO Request processed