curl --request POST \
  --url https://authproxy.turnkey.com/v1/otp_init_v2 \
  --header 'Accept: application/json' \
  --header 'Content-Type: application/json' \
  --header "X-Auth-Proxy-Config-Id: <string> (see Authorizations)" \
  --data '{
    "otpType": "<string>",
    "contact": "<string>",
    "emailCustomization": {
        "templateId": "<string>"
    }
}'

{
  "otpId": "<string>",
  "otpEncryptionTargetBundle": "<string>"
}