apollo-portal/src/main/java/com/ctrip/framework/apollo/openapi/entity/ConsumerAudit.java/ConsumerAudit/toString
class ConsumerAudit:  @Override
  public String toString() {
    return MoreObjects.toStringHelper(this)
        .omitNullValues()
        .add("id", id)
        .add("consumerId", consumerId)
        .add("uri", uri)
        .add("method", method)
        .add("dataChangeCreatedTime", dataChangeCreatedTime)
        .add("dataChangeLastModifiedTime", dataChangeLastModifiedTime)
        .toString();
  }