curl --request POST \
  --url https://alerts-api.dial.to/v2/channel/email/prepare \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'X-Dialect-Client-Key: <x-dialect-client-key>' \
  --data '{
  "email": "user@example.com"
}'

{
  "id": "<string>",
  "type": "EMAIL",
  "value": "<string>",
  "verified": true,
  "subscribed": true,
  "subscribedApps": [
    {
      "id": "255d6163-7e25-43e9-a188-c2f8d0980a4a",
      "name": "Dialect",
      "icon": "https://dialect-file-storage.s3.us-west-2.amazonaws.com/avatars/dialect-logo.png"
    }
  ]
}