{
  "title": "EndUser",
  "type": "object",
  "required": [
    "id",
    "createdAt"
  ],
  "properties": {
    "id": {
      "description": "Unique identifier for the contact",
      "type": "string",
      "format": "uuid"
    },
    "createdAt": {
      "description": "Time when the contact was created",
      "type": "string",
      "format": "date-time"
    },
    "displayName": {
      "description": "The contact's display name",
      "type": "string"
    },
    "email": {
      "description": "The contact's primary email address",
      "type": "string"
    },
    "phoneNumber": {
      "description": "The contact's primary phone number",
      "type": "string"
    },
    "additionalEmails": {
      "description": "Additional email addresses for the contact",
      "type": "array",
      "uniqueItems": true,
      "items": {
        "type": "string"
      }
    },
    "additionalPhoneNumbers": {
      "description": "Additional phone numbers for the contact",
      "type": "array",
      "uniqueItems": true,
      "items": {
        "type": "string"
      }
    },
    "firstName": {
      "description": "The contact's first name",
      "type": "string"
    },
    "lastName": {
      "description": "The contact's last name",
      "type": "string"
    },
    "middleNames": {
      "description": "The contact's middle names",
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "avatarUrl": {
      "description": "The url from which to load the contact's avatar",
      "type": "string"
    },
    "externalId": {
      "description": "Custom external identifier for the contact",
      "type": "string"
    },
    "customAttributes": {
      "description": "Custom attributes for the contact",
      "type": "array",
      "items": {
        "$ref": "#/components/schemas/CustomAttribute"
      }
    }
  },
  "$schema": "http://json-schema.org/draft-07/schema#"
}