iSign Solutions Inc. (OTCPK:ISGN) announced that it has entered into a note purchase agreement for a private placement of a unsecured convertible promissory notes for gross proceeds of $150,000 on March 25, 2020. The notes issued have a fixed interest rate of 10% per annum and have a maturity date of December 31, 2020. The notes are convertible into common shares of the company.