Get user

curl --request GET \
  --url https://us-central1-siro-prod.cloudfunctions.net/api-externalApi/v1/core/users/{id}

{
  "id": "<string>",
  "email": "<string>",
  "organizationId": "<string>",
  "phoneNumber": "<string>",
  "firstName": "<string>",
  "lastName": "<string>",
  "memberTeamId": "<string>",
  "externalId": "<string>",
  "createdAt": "<string>",
  "disabled": true
}