invalid params for block subscription

[friedger]

Describe the bug Calling connectWebSocketClient(..).subscribeBlocks() results in the following error:

JsonRpcError {
  message: 'Invalid params',
  code: -32602,
  data: 'subscription request must use a valid event name'
}

Expected behavior Create a valid subscription

Environment server: "stacks-node 2.05.0.1.0 (master:de541f9, release build, linux [x86_64])" stacks-node-api-client: 3.0.1