Signature String (Raw): goods_name=test&mch_id=100333036&mch_order_no=202601271769536956130016&mch_return_msg=test¬ify_url=https://51game.novasofttech.in/pay/verify.php&order_date=2026-01-27 23:32:36&pay_type=121&trade_amount=0.00&version=1.0&key=7aa4114575474feba8844b9f13ee433d
Generated Signature: d6d6c6dc58f618e2c341210603947dbb
Final Payload to Basepay:
Array
(
    [goods_name] => test
    [mch_id] => 100333036
    [mch_order_no] => 202601271769536956130016
    [mch_return_msg] => test
    [notify_url] => https://51game.novasofttech.in/pay/verify.php
    [order_date] => 2026-01-27 23:32:36
    [pay_type] => 121
    [trade_amount] => 0.00
    [version] => 1.0
    [sign] => d6d6c6dc58f618e2c341210603947dbb
    [sign_type] => MD5
)

Response from Basepay:
NULL