The data couldn’t be read because it is missing - json

Question

I'm trying to decode a JSON I get from a server. But I always get this error:
The data couldn’t be read because it is missing.
I don't understand why I get this error, I looked and saw few answers but nothing solved my problem, I can't figure it out.
This is the response I get from the server (as shown in Postman):
{
"email": "new#user.com",
"username": "newuser",
"user_rating": 0,
"store_id": "",
"state": "",
"city": "",
"address": "",
"zip_code": 0,
"user_id": "user_id_test",
"created_on": 1585933800
}
This is my Swift code:
func getUser(id: String, completion: #escaping(User?, Error?) -> Void) {
let urlParams = "/?id=\(id)"
guard let url = URL(string: baseURL + "getUser" + urlParams) else { return }
var request = URLRequest(url: url)
request.httpMethod = "GET"
_ = URLSession.shared.dataTask(with: request, completionHandler: { (data, response, error) in
if let error = error {
completion(nil, error)
debugPrint(error) //TODO: Handle error.
return
}
guard let jsonData = data else { return }
print(String(bytes: jsonData, encoding: .utf8))
do {
let user = try self.decoder.decode(User.self, from: jsonData)
completion(user, nil)
} catch { print(error.localizedDescription) }
}).resume()
}
This line: print(String(bytes: jsonData, encoding: .utf8)) prints:
Optional("{\"email\":\"new#user.com\",\"username\":\"newuser\",\"user_rating\":0,\"store_id\":\"\",\"state\":\"\",\"city\":\"\",\"address\":\"\",\"zip_code\":0,\"user_id\":\"user_id_test\",\"created_on\":1585933800}")
Which looks okay to me.
This is the User Struct I'm trying to decode:
struct User: Codable {
let email: String!
let username: String!
let rating: Float!
let storeID: String?
let state: String?
let city: String?
let address: String?
let zipCode: Int
let uuid: String!
let createdOn: TimeInterval!
}