How to structure a React Context for posts that have comments

Introduction

In am implementing an Instagram clone:

1. Users have posts.
2. Posts can be liked.
3. Users can comment in posts.
4. Posts have a totalLikes and totalComments field.
5. Comments can be liked.
6. Users can reply to comments.
7. Comments have a totalLikes and totalComments (replies) field.

Until now, I have been working with the current PostsContext:

const initialState = {};

export function PostsProvider({ children }) {
   const [contents, dispatch] = useReducer(contentsReducer, initialState);

   const addUserPosts = (userId, posts, unshift = false, cached = true) => { ... }

   const likePost = (postOwnerId, postId) => { ... }

   const commentPost = (postOwnerId, postId, comment) => { ... }

   const getUserPosts = (userId) => { ... }

   const getUserPost = (userId, postId) => { ... } 
}

Where, my stateful data looks like:

{
   userId1: { 
      posts: [ 
         {
            id,
            uri,
            totalLikes,
            totalComments,
            isLiked,
            date
         },
         ...
      ]
   },
   userId2: { posts: [...] }
 }

Question

My question is, should I use another context for comments? I mean, comments will work the same way as posts, they can be liked and replied... so maybe, it is unnecessary.

When a user comments in a post:

1. The post totalComments is increased.
2. If the user is replying to a comment in the post, the replied comment's totalComments is increased too.

When a user likes a comment, it doesn't affect to the post "data" itself, only to the liked comment totalLikes field.

So... if I create a new context for comments, it seems that I will need to consume the PostsContext inside it, in order to increase the post totalComments field.

Any ideas about how to structure my posts context?

Note: My question is more about the context organization than anything else (do not look at implementation, just to the structure of my stateful data and the idea of splitting contexts).