use naming series for Subscriptions
diff --git a/erpnext/accounts/doctype/subscriptions/subscriptions.json b/erpnext/accounts/doctype/subscriptions/subscriptions.json
index 7108c30..acadf65 100644
--- a/erpnext/accounts/doctype/subscriptions/subscriptions.json
+++ b/erpnext/accounts/doctype/subscriptions/subscriptions.json
@@ -3,7 +3,7 @@
  "allow_guest_to_view": 0, 
  "allow_import": 0, 
  "allow_rename": 0, 
- "autoname": "field:subscriber", 
+ "autoname": "SUB.####", 
  "beta": 0, 
  "creation": "2018-02-26 04:13:14.153718", 
  "custom": 0, 
@@ -686,7 +686,7 @@
  "issingle": 0, 
  "istable": 0, 
  "max_attachments": 0, 
- "modified": "2018-02-26 04:52:04.318912", 
+ "modified": "2018-02-26 05:07:43.969220", 
  "modified_by": "Administrator", 
  "module": "Accounts", 
  "name": "Subscriptions",