title: Cube.js: invalid token
body: <p>In the server of cubejs, I generated a token by <code>cubejs token -e "180 day"</code>.</p>
  
  <p>Then I assign it to <code>CUBEJS_API_SECRET</code> in <code>.env</code>; and assign it to <code>const cubejsApi = cubejs(...</code>. Then I launched the backend and the frontend, I got the following error:</p>
  
  <pre><code>Invalid Token: {
    "token": "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpYXQiOjE1ODg5MzQyOTYsImV4cCI6MTYwNDQ4NjI5Nn0.RVdHlpfubXDgwG1FRYbUm-UDLVBjnb-HSVTK5bEy-ZU"
  } 
  JsonWebTokenError: invalid signature
      at /Users/chengtie/Downloads/tmp20200414/cubejs/node_modules/jsonwebtoken/verify.js:133:19
      at getSecret (/Users/chengtie/Downloads/tmp20200414/cubejs/node_modules/jsonwebtoken/verify.js:90:14)
      at Object.module.exports [as verify] (/Users/chengtie/Downloads/tmp20200414/cubejs/node_modules/jsonwebtoken/verify.js:94:10)
      at ApiGateway.defaultCheckAuth (/Users/chengtie/Downloads/tmp20200414/cubejs/node_modules/@cubejs-backend/api-gateway/index.js:551:28)
      at ApiGateway.checkAuth (/Users/chengtie/Downloads/tmp20200414/cubejs/node_modules/@cubejs-backend/api-gateway/index.js:572:18)
      at Layer.handle [as handle_request] (/Users/chengtie/Downloads/tmp20200414/cubejs/node_modules/express/lib/router/layer.js:95:5)
      at next (/Users/chengtie/Downloads/tmp20200414/cubejs/node_modules/express/lib/router/route.js:137:13)
      at Route.dispatch (/Users/chengtie/Downloads/tmp20200414/cubejs/node_modules/express/lib/router/route.js:112:3)
      at Layer.handle [as handle_request] (/Users/chengtie/Downloads/tmp20200414/cubejs/node_modules/express/lib/router/layer.js:95:5)
      at /Users/chengtie/Downloads/tmp20200414/cubejs/node_modules/express/lib/router/index.js:281:22
  </code></pre>
  
  <p>Regardless of this error, it seems that the data query worked. Does anyone know what happened?</p>