LiqPay payment binding automation

There was a problem with the automatic binding of the LiqPay payment. I have already set up automatic binding of PrivatBank payments, in automatic actions once a minute, by analogy I tried to do the same for LiqPay, but there was a problem with the regular expression by which it finds the payment if the order number is specified in the payment purpose. Example: Text in the payment purpose: "Transfer from a PrivatBank card through the Privat24 application. Sender: Druzhinin Oleksandr Viktorovych. Comment to the payment: 33809", the conditions match the regular expression: "SOID\s{0,}ordercode1c\s+" and the payment is linked automatically. LiqPay has a different text in the payment purpose: "LIQPAY ID 1765677160 SOID 33809_1631805077 PBK i99746760061 DATE 2021-09-16 TYPE acquiring" and this regular expression is no longer suitable, the problem is the "_" symbol, most likely. How should the regular expression be changed so that the payment is automa