Details rule node returns entity's ID as well.

rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/metadata/TbAbstractGetEntityDetailsNode.java

@@ -119,6 +119,9 @@ public abstract class TbAbstractGetEntityDetailsNode<C extends TbAbstractGetEnti
     private JsonElement setProperties(ContactBased entity, JsonElement data, EntityDetails entityDetails, String prefix) {
         JsonObject dataAsObject = data.getAsJsonObject();
         switch (entityDetails) {
+            case ID:
+                dataAsObject.addProperty(prefix + "id", entity.getId().toString());
+                break;
             case TITLE:
                 dataAsObject.addProperty(prefix + "title", entity.getName());
                 break;

rule-engine/rule-engine-components/src/main/java/org/thingsboard/rule/engine/util/EntityDetails.java

@@ -17,6 +17,6 @@ package org.thingsboard.rule.engine.util;
 
 public enum EntityDetails {
 
-    TITLE, COUNTRY, CITY, STATE, ZIP, ADDRESS, ADDRESS2, PHONE, EMAIL, ADDITIONAL_INFO
+    ID, TITLE, COUNTRY, CITY, STATE, ZIP, ADDRESS, ADDRESS2, PHONE, EMAIL, ADDITIONAL_INFO
 
 }