Dependency-Injection of an Doctrine-Entity into a Service in Symfony4?

I'm trying to inject an Entity via DI into a service.

The Entity is created from a JSON-Field in the database (which got queried from the user-request) via the Doctrine-JSON-ODM-library (https://github.com/dunglas/doctrine-json-odm).

I would generally write a Context-class, which would take Request & Repository to return the Dependency( as described here https://blogs.cuttingedge.it/steven/posts/2015/code-smell-injecting-runtime-data-into-components/ ). However since my dependencies rely on deeply nested data inside a tree-structure, this does not seem feasible.

/* Doctrine-Entity queried from DB with User-Request-Parameters */class Page{    /**     * @var Slot[]     * @ORM\Column(type="json_document", options={"jsonb": true})     */    private $slots = [];}/* First level of nesting */class Slot{    /** @var Components[] */    private $components;}/* Entity to be injected */class Component{   // multiple data-fields}// Service which will need to work with the Component-Dataclass ComponentRenderService{   // multiple functions which all need (read)-access to the   // Component-data}

How can I resolve a dependency which get's created via a deeply nested-structure?