Send codable in notification payload.

Notication+Codable.swift

extension Encodable {
    var asDictionary: [String: Any]? {
        guard let data = try? JSONEncoder().encode(self) else { return nil }
        return (try? JSONSerialization.jsonObject(with: data, options: .allowFragments)).flatMap { $0 as? [String: Any] }
    }
}

extension Decodable {
    static func fromDictionary(from json: Any) -> Self?  {
        guard let jsonData = try? JSONSerialization.data(withJSONObject: json, options: []) else {
            return nil
        }
        return try? JSONDecoder().decode(Self.self, from: jsonData)
    }
}

extension Notification {
    static func fromEntity<T: Codable>(named: String, userInfo: T, object: Any?) -> Notification {
        let name = Notification.Name(named)
        let userInfo = userInfo.asDictionary
        return Notification(name: name, object: object, userInfo: userInfo)
    }
}