You should replace
<authentication-key>
,<account-sid>
, and<verification-service-id>
with your own Twilio account information. These values should be your Twilio account's authentication key, account SID, and verification service SID, respectively.
"TwilioSettings": {
"AuthenticationKey": "<your-authentication-key>",
"AccountSid": "<your-account-sid>",
"VerificationServiceSid": "<your-verification-service-id>",
"VerifyChannel": "sms"
},