Logstash JSON Parsing Error

Hi,
I have sample json that I am pushing first into SQLite db and later to Logstash over TCP input.
When I am using Logstash version 7.1.1 , everything is working fine. However, when I use Logstash 7.2.0 / 7.3.0 it throws JSON parsing error.

For generating json, I am using Newtonsoft.Json package in my .Net application, Newtonsoft.Json version 12.0.1.

Team, could you pl help me out for this?

Regards,
Tejas

Can you show us the JSON and the error?