ExtractVariables is not working

[#1]

My Uri is:

http://xxxxx.apigee.net/user/activate/oqTW1ZbKqqCgz592nKKUnaGQd5_r

My extract variable policy is:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<ExtractVariables async="false" continueOnError="false" enabled="true" name="EV-GetStartDate">
    <DisplayName>EV-GetStartDate</DisplayName>
    <URIPath name="token" type="string">
        <Pattern ignoreCase="true">/{token}</Pattern>
    </URIPath>
    <VariablePrefix>queryinfo</VariablePrefix>
    <IgnoreUnresolvedVariables>true</IgnoreUnresolvedVariables>
</ExtractVariables>

My assign message policy:

<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<AssignMessage async="false" continueOnError="false" enabled="true" name="AM-AssigningDate">
    <DisplayName>AM-AssigningDate</DisplayName>
    <Set>
        <Payload contentType="application/json">
           {"token":"{queryinfo.token}","service":1}
        </Payload>
    </Set>
    <IgnoreUnresolvedVariables>true</IgnoreUnresolvedVariables>
    <AssignTo createNew="false" transport="http" type="request"/>
</AssignMessage>

my flow url is:

http://xxxxx.apigee.net/user/activate

my base url is:

http://xxxxx.apigee.net/user

I want to extract "oqTW1ZbKqqCgz592nKKUnaGQd5_r"

I am not getting any request payload while printing in logs.