How to deserialize JSON-LD from ApiPlatform with PHP - symfony

Question

I've successfully built an API for my system with ApiPlatform. Thanks to the developers it's an excellent system. I can send it requests in JSON-LD format and it returns it's responses in JSON-LD as well.
I understand the benefits of using JSON-LD, but I feel like I am missing a big piece of the puzzle. How to deserialize to PHP objects, using the embedded JSON-LD context, in my Symfony based PHP client that is to consume the API.
Say I have the following response from my API
{
"#context": "/contexts/CallbackRequest",
"#id": "/callback-requests/72",
"#type": "CallbackRequest",
"id": 72,
"created": "2017-09-22T08:07:25+02:00",
"customer": {
"#id": "/customers/13",
"#type": "Customer",
"id": 13,
"firstName": "Joe",
"lastName": "Bloggs",
"email": "joe#bloggs.com",
"mobilePhone": "123456789"
}
}
Now there is enough information available in here to deserialize to the 2 PHP objects CallbackRequest with nested object Customer thanks to the JSON-LD #context and #type data.
I have written my own denormalizer, but I have to tell the serializer what kind of object I want to deserialize to first, but I can't extract this from the JSON-LD without normalizing it first.
I have searched around a lot looking for anyone who has made a JSON-LD normalizer/denormalizer for the Symfony serializer but have found nothing (with the exception of this functionality inside the API Platform package itself).
Can anybody provide me any pointers, either to a JSON-LD denormalizer package that I can implement, or any suggestions on how to implement the Symfony serializer to denormalize JSON-LD without knowing the what object it is supposed to contain in advance.
Thank you