Python Django Multi Level Join Query - django

Question

Task Details
I am working on creating a custom API to fetch data from three tables, based on provided key info.
Background
To elaborate, I've three data tables - Client, Account and Client_accounts and their structure looks like this:
Client
ID (Integer) Primary Key
display_name (varchar)
Accounts
ID (Integer) Primary Key
nickname (varchar)
Client_Accounts
Client_ID (Integer) Foreign Key -> ID from client table
Account_ID (Integer) Foreign Key -> ID from accounts table
In intend to pass a client ID to my API and want to fetch all the accounts (and accounts names) owned by that client.
The SQL query that I am trying to replicate looks like this:
select
cl.id as client_id,
cl.display_name,
ac.id as account_id,
ac.nickname as account_name
from
datahub_clients cl
join
datahub_client_accounts cl_ac
on
cl.id=cl_ac.client_id
join
datahub_accounts ac
on
cl_ac.account_id=ac.id
where
cl.id=15
;
Done so far
This is what I used to fetch the the accounts for a client:
##### For endpoint - get_client_name
#api_view(['GET', 'POST'])
#permission_classes((AllowAny,))
def get_client_name(request):
try:
if request.method == 'GET':
list_of_account_ids = Client_Accounts.objects.filter(client_id=request.GET['id']).values_list('account')
needed_accounts = Accounts.objects.filter(id__in=list_of_account_ids).values('id','nickname')
return Response({'requested client id':request.GET['id'],'identified client name': 'detailed info to go here'}, status=status.HTTP_200_OK)
else:
return Response({'status':'error','message': 'Facepalm moment!'}, status=status.HTTP_403_FORBIDDEN)
Problem Statement
1) In the code above, I was able to pull the relevant accounts for a client_id, however, I can only print the details from account table. How do I put client information as well in the output (client_id, nickname - as shown in the SQL query)
2) What is the django replacement for SQL 'old_field_name AS some_new_name'? In the data tables shown above, both the account and client tables have an 'ID' column. I want to put them both together in the same JSON output and to be able to distinguish between then, I would want to rename them.
3) At this point, my queryset has field members from multiple models. How do I serialize them? I understand that I need to write a custom serializer, which would be based on the two models (for the example show above). I am confused about what to specify in the model= section and meta: section.