gem install webtoken 

 require 'webtoken' 

data.web_token 

#sample = {"eyJhbGciOiJub25lIn0.eyJkYXRhIjp7InVzZXJpZCI6ImpodiIsImRhdGUiOiIyMDE4LTA1LTI1IiwidGltZSI6IjIwMTgtMDUtMjUgMTI6Mzk6MzIgKzA1MzAifX0."} 

validate_token = WebToken::WebtokenValidate.new validate_token.validate( 'your token' ) 

{"userid" : "userid", date: "date", time: "time"} #access token valid	false #access token invalid 

https://rubygems.org/gems/webtoken