diff --git a/utils/src/format.h b/utils/src/format.h
index f2480fc3..2ba9cbd8 100644
--- a/utils/src/format.h
+++ b/utils/src/format.h
@@ -238,6 +238,7 @@ struct scoutfs_key {
 #define SCOUTFS_SYMLINK_KEY		8
 #define SCOUTFS_EXTENT_KEY		9
 #define SCOUTFS_ORPHAN_KEY		10
+#define SCOUTFS_DATA_KEY		11
 #define SCOUTFS_MAX_UNUSED_KEY		255
 
 #define SCOUTFS_MAX_ITEM_LEN 512
@@ -268,6 +269,13 @@ struct scoutfs_orphan_key {
 	__be64 ino;
 } __packed;
 
+/* value is data payload bytes */
+struct scoutfs_data_key {
+	__u8 type;
+	__be64 ino;
+	__be64 block;
+} __packed;
+
 struct scoutfs_btree_root {
 	u8 height;
 	struct scoutfs_block_ref ref;
diff --git a/utils/src/print.c b/utils/src/print.c
index 30749431..9f486ccc 100644
--- a/utils/src/print.c
+++ b/utils/src/print.c
@@ -171,6 +171,14 @@ static void print_readdir(void *key, int key_len, void *val, int val_len)
 	       name);
 }
 
+static void print_data(void *key, int key_len, void *val, int val_len)
+{
+	struct scoutfs_data_key *dat = key;
+
+	printf("      data: ino %llu block %llu\n",
+	       be64_to_cpu(dat->ino), be64_to_cpu(dat->block));
+}
+
 #if 0
 static void print_link_backref(struct scoutfs_link_backref *lref,
 			       unsigned int val_len)
@@ -205,6 +213,7 @@ static print_func_t printers[] = {
 	[SCOUTFS_ORPHAN_KEY] = print_orphan,
 	[SCOUTFS_DIRENT_KEY] = print_dirent,
 	[SCOUTFS_READDIR_KEY] = print_readdir,
+	[SCOUTFS_DATA_KEY] = print_data,
 };
 
 /* utils uses big contiguous allocations */