malformed url exception

[Lekshmi Prakash]

I have an HTTP request with below url

https://
<servername>/perfmultiple/v1/logs?$filter=${__urlencode({"$and":[{"endTime":{"$gt":"ISODate(2017-02-21T13:53:56.861Z)"}},{"command":"Alibaba"}]})}

I am getting a malformed url exception .

But if I send request with below url it works.There is only one value in
the json array

https://
<servername>/perfmultiple/v1/logs?$filter=${__urlencode({"$and":[{"endTime":{"$gt":"ISODate(2017-02-21T13:53:56.861Z)"}}]})}

How do I handle the scenario when the json array has more than one value?