zio-json | Fast , secure JSON library with tight ZIO integration | JSON Processing library

You should address this problem using a json encoding/decoding library. Here is an example using circe and it's semi-automatic mode.

Since you mentionned in the comments that you are struggling with generic types in your case classes, I'm also including that. Basically, to derive an encoder or decoder for a class Foo[T] that contains a T, you have to prove that there is a way to encode and decode T. This is done by asking for an implicit Encoder[T] and Decoder[T] where you derive Encoder[Foo[T]] and Decoder[Foo[T]]. You can generalize this reasoning to work with more than one generic type of course, you just have to have an encoder/decoder pair implicitly available where you derive the encoder/decoder for the corresponding case class.