Nested structs for HTTP Calls

Some API's return complex structures. Here's for an example from Stocktwits API.
Instead of creating a specific type for every element in the structre, we use use a anonymous structure and define only the fields we're intrested in. In our example we'd like to see the symbols most mentioned for a given symbol (in our case AAPL). And the output:

$ go run stocktwits.go
SPY    10
TSLA    7
AMZN    5
BTC.X   5
TVIX    2