Deserialize Vec<u8> into readable (raw) json - json

Question

I'm working with a http::request::Request that I'm getting after calling this function: https://docs.rs/kube/0.76.0/kube/core/struct.Request.html#method.patch_subresource.
The call looks like that:
let mut pp = PatchParams::default();
pp.field_manager = Some(String::from("application/apply-patch"));
let req = self
.mfs
.patch_subresource("status", &self.name, &pp, &Patch::Apply(data))
.map_err(ErrorKind::KubeApi)?;
I'm actually debugging this part, so I don't know exactly what should be in the body of this request. However, I know that req.body() is a &Vec<u8>, and I know that this data can be deserialized to json.
I just want to deserialize this Vec<u8> to readable json. Nothing else. But this proved surprisingly difficult.
I tried many approaches like that without much success (when I print body I see an array of int).
let data: &Vec<u8> = req.body();
let body: serde_json::Value = serde_json::from_slice(data).unwrap();
The output is something like that:
[123,34,115,116,97,116,117,115,34,58...
I know this isn't really an array of int, it's just the debug version of Vec<u8>. So my attempt at decoding the body to json doesn't really work here.
Note that:
let body = String::from_utf8(req.body().clone()).unwrap();
Outputs something like that:
"{\"status\":{\"conditions\":{\"generated\":{\...
-> This is the debug version of a string, not the debug version of some json
Is totally readable, but I'm really trying to get some raw json here. Any idea?