How to send data with request using VaRest Plugin?

Hello, I am attempting to use the VaRest Plugin. My application of this plugin is retrieving information from Elasticsearch using its rest api. I have been able to send a simple get request and confirm that I can reach my server, but I cannot figure out how to use the blueprint nodes to construct my request. I am used to using the curl command when sending json to the api and so that is how I will show you what I am trying to accomplish. I am trying to do the equivalent of the following. curl -X GET “localhost:9200/twitter/_search” -H ‘Content-Type: application/json’ -d’
{
“query” : {
“term” : { “user” : “kimchy” }
}
}

I tried to understand how to send this using this blueprint plugin but have become very frustrated and thus I am asking for help. So far I have tried getting the request object and adding fields for the data content, but I do not know what the field should be named or what type of value needs to go in it specifically.