add optional JSON requirement
add optional JSON requirement

antstorm/money,RubyMoney/money,bnmrrs/money,kewaunited/money,BrandyMint/money,insphire/money,printercu/money,nilbus/money,saizai/money,pixeltrix/money,gregoryhappyfresh/money,paulodiniz/money,envato/money,AlexVPopov/money,bonusly/money,richardvenneman/money,maicoin/money