Make payment

To make a payment, use the command account/do_payment:

svc=account/do_payment&params={"itemId":<long>,
			       "balanceUpdate":<double>,
			       "daysUpdate":<int>,
			       "description":<text>}

Parameters

Name	Description
itemId	resource (account) ID
balanceUpdate	sum of payment (can be negative)
daysUpdate	quantity of days added (can be negative)
description	description (required parameter)

{}	/* empty object if execution successful, if not - error code */