Index: flexoentity/flexo_entity.py
===================================================================
--- flexoentity/flexo_entity.py	(revision 68fdfc4e1e5bbc6a1f26d597e6934cef75f39358)
+++ flexoentity/flexo_entity.py	(revision c755573bc82b356af8b0028e2ad5be11e207befe)
@@ -288,4 +288,7 @@
         meta = data.get("meta", "")
 
+        if not meta:
+            raise ValueError("Serialized entity must include 'meta' object.")
+
         schema = meta.get("schema", {"name": "flexograder-entity",
                                      "version": "1.0"})