LR 12 web_reg_save_param_regexp help required

I have the following string: "Name":"MLAPPTST","PensionPlan":"Members of the Legislative Assembly Pension Plan (Closed 1989)","RemittanceStatus":2,

I need to capture the value "2" from this string.

What does not change in this expresion are the following: 

"Name":

"PensionPlan":

"RemittanceStatus":

What is dynamic:

"MLAPPTST"

"Members of the Legislative Assembly Pension Plan (Closed 1989)"

Can you please help out?

Thanks