Hey there, we do provide a sample in our SRP Package that can show you how to achieve a glitter effect, the SRP Lightweight GlintSparkle, which you may use as a good starting point.
You need to be using Unity 2018 and have their Lightweight SRP package installed in order to view this material, but you may also just extract our SRP Samples.unitypackage in order to access the shader sample to examine the node setup.
Feel free to check out our
ASE SRP setup tutorial video for detailed instructions, and be sure to let me know if this helps or if you have any further questions, thanks!