Timeout error for creating a Timeseries subscription

Hi Team, 

I work with Celanese and we are trying to work on creating Power BI dashboards for streaming Data (Timeseries).  I am following below solution for doing the same. 

• Streaming data from Cognite Data Fusion to Power BI [Cognite Official]

I am facing same “timeout” error while creating Subscriptions. I am using below code. 
my_filter = f.Prefix(
    property=p.external_id,
    value="EVE"
)
sub = DataPointSubscriptionCreate(
    external_id="powerbi-subscription-test",
    name="PowerBI Subscription Test",
    description="Subscription for PowerBI",
    partition_count=1,
    filter=my_filter
)
client.time_series.subscriptions.create(sub)