The keypair that the health service uses to receive secure messages is expiring

Does anyone know what this means?

Log Name:      Operations Manager
Source:        HealthService
Date:          07/10/2017 08:50:01
Event ID:      7013
Task Category: Health Service
Level:         Warning
Keywords:      Classic
User:          N/A
Computer:      %computername%.domain.suffix
Description:
The keypair that the health service uses to receive secure messages is expiring on 29 October 2017.  The health service will be recycled and the key regenerated.
Event Xml:
<Event xmlns="http://schemas.microsoft.com/win/2004/08/events/event">
  <System>
    <Provider Name="HealthService" />
    <EventID Qualifiers="32768">7013</EventID>
    <Level>3</Level>
    <Task>1</Task>
    <Keywords>0x80000000000000</Keywords>
    <TimeCreated SystemTime="2017-10-07T07:50:01.631714600Z" />
    <EventRecordID>16</EventRecordID>
    <Channel>Operations Manager</Channel>
    <Computer>%computername%.domain.suffix</Computer>
    <Security />
  </System>
  <EventData>
    <Data>29 October 2017</Data>
  </EventData>
</Event>