Changed type of Contact.UserId

pkg/contact/contact.go

@@ -1,6 +1,10 @@
 package contact
 
+import (
+	"github.com/google/uuid"
+)
+
 type Contact struct {
-	PhoneNumber string `json:"phone_number,omitempty"`
+	PhoneNumber string    `json:"phone_number,omitempty"`
-	UserId      string `json:"user_id,omitempty"`
+	UserId      uuid.UUID `json:"user_id,omitempty"`
 }