There are several frameworks which can exactly do that.
circe
Used a lot nowdays. Many great features. Will pull cats in.
https://circe.github.io/circe/
https://github.com/circe/circe
JSON4s
JSON4s is quite mature and supports jackson or a native JSON-Parser. Used it in many projects to replace jerkson.
https://github.com/json4s/json4s
play-json
Can be used without the full play stack. Great support as part of the play project at typesafe.
http://www.playframework.com/documentation/2.0/ScalaJson
Scala-Pickling
A serialization Framework. There is an option to serialize/ and deserialize to JSON.
https://github.com/scala/pickling
Spray JSON
Can searialize and deserialize. Need to know number of arguments for deserialization tough.
https://github.com/spray/spray-json