diff --git a/subscribe_message.go b/subscribe_message.go
new file mode 100644
index 0000000..cb8b6e8
--- /dev/null
+++ b/subscribe_message.go
@@ -0,0 +1,11 @@
+package overflow_subscriber
+
+type SubscribeMessage struct {
+	Targets []string             `json:"targets"`
+	Message SubscribeMessageBody `json:"message"`
+}
+
+type SubscribeMessageBody struct {
+	Method string      `json:"method"`
+	Params interface{} `json:"params,omitempty"`
+}