curl -i -X POST \
  https://api-ext-sboxmeta.partners.spotnana.com/v2/users/4974a66b-7493-4f41-908c-58ba81093947/managed-travelers/update \
  -H 'Authorization: Bearer <YOUR_TOKEN_HERE>' \
  -H 'Content-Type: application/json' \
  -d '{
    "travelers": [
      {
        "userId": {
          "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08"
        },
        "receiveEmails": true
      }
    ]
  }'