Sending a identify event...

Event Sent! Here's the response:
object(CS_REST_Wrapper_Result)#6 (2) {
  ["response"]=>
  object(stdClass)#5 (2) {
    ["Code"]=>
    int(100)
    ["Message"]=>
    string(15) "Invalid API Key"
  }
  ["http_status_code"]=>
  int(401)
}