@State var userSession : [String: Any]?

when i print userSession!["data"] i receive

Optional({
    "access_token" = "MTg3MGFkMzJkNzMzMTA0NGMzZGI2NjFkZWJlOGZmMDUxMzViMjkzNGEzY2M1MWU4MTYyNDg5NDgxNw==";
    "access_token_expires_in" = 1200;
    "refresh_token" = "NGQyYjFmY2VlZTg1YTNhYzM2ZmY5M2U4NjYzMWE5ZGNhY2RhYjA4MjgwZWVkYTJmMTYyNDg5NDgxNw==";
    "refresh_token_expires_in" = 1209600;
    "session_id" = 19;
})

how can i acess this values ?

The problem is that since the values in userSession can be Any, Swift has no idea that the "data" key is a Dictionary. So it can't access the subscripts. So you somehow need to let Swift know that this is a Dictionary.

Either of these methods will work:

let sesh1 = userSession!["data"]! as! [String:Any]
print(sesh1["session_id"])

let sesh2 = (userSession! as NSDictionary).value(forKeyPath: "data.session_id")
print(sesh2)

But be sure to properly deal with all the Optionals in your actual code. All that force unwrapping hurts my soul.