Model

class Entity(models.Model):
    uuid = models.UUIDField(editable=False, unique=True, default=uuid.uuid4)
    institute_name = models.CharField(max_length=100, null=False)
    owner_name = models.CharField(max_length=100, null=False)
    contact_no = models.CharField(max_length=100, null=False)
    email_id = models.CharField(max_length=100, null=False, unique=True)
    # required fields for registration
    owner_password = models.CharField(max_length=100, null=True)
    address = models.CharField(max_length=200, default="")
    email_id_verified = models.BooleanField(default=False)
    phone_no_verified = models.BooleanField(default=False)
    registered_business = models.BooleanField(default=False)
    owner_id_details = models.JSONField(default=dict)
    registration_details = models.JSONField(default=dict)
    is_active = models.BooleanField(default=False)
    created_at = models.DateTimeField(auto_now_add=True)
    updated_at = models.DateTimeField(auto_now=True)

View
This is the get api for getting entity detail.

class EntityDetailView(APIView):
    def get(self, request, id):
        entity = get_object_or_404(Entity, uuid=id)
        serializer = EntitySerializer(entity)
        return Response(serializer.data)

Resulting SQL query

SELECT "entities_entity"."id",
       "entities_entity"."uuid",
       "entities_entity"."institute_name",
       "entities_entity"."owner_name",
       "entities_entity"."contact_no",
       "entities_entity"."email_id",
       "entities_entity"."owner_password",
       "entities_entity"."address",
       "entities_entity"."email_id_verified",
       "entities_entity"."phone_no_verified",
       "entities_entity"."registered_business",
       "entities_entity"."owner_id_details",
       "entities_entity"."registration_details",
       "entities_entity"."is_active",
       "entities_entity"."created_at",
       "entities_entity"."updated_at"
  FROM "entities_entity"
 WHERE "entities_entity"."uuid" = '68e0956b-c166-4844-8842-51371c385a90'::uuid
 LIMIT 21

Why is django adding limit 21 in my resulting SQL Query
I tested it using django debug toolbar