Retrieve floating threads using API2

Hello,

I want to retrieve messages whose subscroption_type is set to 'float' using API2 query.

I am able to retrieve the same using API1 using below RESTcall.

/restapi/vc/boards/id/<board id>/subscriptions/global/float/thread?page_size=10

Can some one help me with its equivalent query API2?

Regards,

Ronak