configureHubRSocketConnector

 hubRSocketConnector = HubRSocketConnector {
     connectionConfig {
         payloadMimeType = springServerMimeTypeConfig()
         setupPayload {
             buildPayload {
                 data(buildPacket { writeText(clientName) })
                 compositeMetadata {
                     add(
                         WellKnownMimeType.MessageRSocketAuthentication,
                         buildPacket { writeText(jwt) }
                     )
                 }
             }
         }
     }
}