I receive input data like that into a web service developed using a Genexus Procedure:
SmsMessageSid=SM7e1ab417617176ec9936788235aaf020&NumMedia=0&ProfileName=Checho&SmsSid=SM7e1ab417617176ec9936788235aaf045&WaId=5699999999&SmsStatus=received&Body=**Este es un texto lago que incluye : % .