public FairlayPrivateApi(PrivateApiRequestBuilder requestBuilder,
                          PrivateApiRequestSigner requestSigner, PrivateApiRequestNonceGenerator requestNonceGenerator,
                          PrivateApiConnection apiConnection)
 {
     this.requestBuilder        = requestBuilder;
     this.requestSigner         = requestSigner;
     this.requestNonceGenerator = requestNonceGenerator;
     this.apiConnection         = apiConnection;
 }