Implement OTP and show received callbacks

core/models.py

@@ -81,6 +81,11 @@ class Hook(models.Model):
     received = models.IntegerField(default=0)
 
 
+class Callback(models.Model):
+    hook = models.ForeignKey(Hook, on_delete=models.CASCADE)
+    data = models.JSONField()
+
+
 # class Perms(models.Model):
 #     class Meta:
 #         permissions = (