curl --request PATCH \
  --url https://api.open.cx/contacts/{contact_id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "contact": {
    "email": "[email protected]",
    "phone": "<string>",
    "name": "<string>",
    "custom_data": {},
    "http_action_overrides": {
      "query_params": {},
      "path_params": {},
      "body_params": {},
      "headers": {}
    }
  }
}
'

{
  "statusCode": 123,
  "message": "<string>",
  "error": "<string>"
}