public void load(NamedQueuePayload namedQueuePayload) {
    this.namedQueuePayload = namedQueuePayload;
  }
Load the Envelope with {@link RpcCall}
@param namedQueuePayload all details of rpc call that would be useful for ring buffer consumers
hbase-server/src/main/java/org/apache/hadoop/hbase/namequeues/RingBufferEnvelope.java