Update User email

curl --request PUT \
  --url https://api.gcore.com/iam/users/{userId}/email \
  --header 'APIKey: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '{
  "new_email": "<string>",
  "password": "<string>"
}'

{
  "new_email": "<string>"
}