diff --git a/litellm/litellm_core_utils/litellm_logging.py b/litellm/litellm_core_utils/litellm_logging.py
index 1b3a687f1f3..5a0473ac89e 100644
--- a/litellm/litellm_core_utils/litellm_logging.py
+++ b/litellm/litellm_core_utils/litellm_logging.py
@@ -203,6 +203,10 @@ except Exception as e:
     EnterpriseStandardLoggingPayloadSetupVAR = None
 _in_memory_loggers: List[Any] = []
 
+_STANDARD_LOGGING_METADATA_KEYS: frozenset = frozenset(
+    StandardLoggingMetadata.__annotations__.keys()
+)
+
 ### GLOBAL VARIABLES ###
 
 # Cache custom pricing keys as frozenset for O(1) lookups instead of looping through 49 keys
@@ -4525,17 +4529,12 @@ class StandardLoggingPayloadSetup:
             user_api_key_auth_metadata=None,
         )
         if isinstance(metadata, dict):
-            # Filter the metadata dictionary to include only the specified keys
-            supported_keys = StandardLoggingMetadata.__annotations__.keys()
-            for key in supported_keys:
-                if key in metadata:
-                    clean_metadata[key] = metadata[key]  # type: ignore
+            for key in metadata.keys() & _STANDARD_LOGGING_METADATA_KEYS:
+                clean_metadata[key] = metadata[key]  # type: ignore
 
-            if metadata.get("user_api_key") is not None:
-                if is_valid_sha256_hash(str(metadata.get("user_api_key"))):
-                    clean_metadata["user_api_key_hash"] = metadata.get(
-                        "user_api_key"
-                    )  # this is the hash
+            user_api_key = metadata.get("user_api_key")
+            if user_api_key and isinstance(user_api_key, str) and is_valid_sha256_hash(user_api_key):
+                clean_metadata["user_api_key_hash"] = user_api_key
             _potential_requester_metadata = metadata.get(
                 "metadata", None
             )  # check if user passed metadata in the sdk request - e.g. metadata for langsmith logging - https://docs.litellm.ai/docs/observability/langsmith_integration#set-langsmith-fields
diff --git a/tests/logging_callback_tests/test_standard_logging_payload.py b/tests/logging_callback_tests/test_standard_logging_payload.py
index 3d8ffbf1f7f..53f555e7658 100644
--- a/tests/logging_callback_tests/test_standard_logging_payload.py
+++ b/tests/logging_callback_tests/test_standard_logging_payload.py
@@ -219,6 +219,22 @@ def test_get_standard_logging_metadata_invalid_user_api_key():
     assert result["user_api_key_hash"] is None
 
 
+def test_get_standard_logging_metadata_non_string_user_api_key():
+    """Non-string user_api_key should not be set as user_api_key_hash."""
+    metadata = {"user_api_key": 12345}
+    result = StandardLoggingPayloadSetup.get_standard_logging_metadata(metadata)
+    all_fields_present(result)
+    assert result["user_api_key_hash"] is None
+
+
+def test_get_standard_logging_metadata_none_user_api_key():
+    """None user_api_key should not be set as user_api_key_hash."""
+    metadata = {"user_api_key": None}
+    result = StandardLoggingPayloadSetup.get_standard_logging_metadata(metadata)
+    all_fields_present(result)
+    assert result["user_api_key_hash"] is None
+
+
 def test_get_standard_logging_metadata_invalid_keys():
     metadata = {
         "user_api_key_alias": "test_alias",