F5 Configuration for SPP Load Balancing

Can anyone provide Send string and Receive string to check SPP state on a F5 load balancer?

We're currently using the below and the SPP's are showing as offline.

Send String  -  GET /service/notification/v3/Status/State\r\n

Receive String -  \"State\":\"(Online|Offline Workflow|PatchPending|ReplicaWithQuorum)\"

Browsing to the below returns State "Online"

https://<IP of Appliance>/service/notification/v3/Status/State