Is there any way to convert this=>

result

{"data":[{"insurer":"CompanyName1","products":[{"name":"product1","UIN":"A"},{"name":"product2","UIN":"B"},{"name":"product3","UIN":"C"},{"name":"product4","UIN":"D"}]},{"insurer":"CompanyName2","products":[{"name":"product5","UIN":"E"},{"name":"product6","UIN":"F"},{"name":"product7","UIN":"G"},{"name":"product8","UIN":"H"}]},{"insurer":"CompanyName3","products":[{"name":"product9","UIN":"I"},{"name":"product10","UIN":"J"},{"name":"product11","UIN":"K"}]}]}