curl --request PUT \
  --url https://cloud.kaneo.app/api/task/assignee/{id} \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "userId": "<string>"
}
'

{
  "id": "<string>",
  "projectId": "<string>",
  "position": 123,
  "number": 123,
  "userId": "<string>",
  "title": "<string>",
  "description": "<string>",
  "status": "<string>",
  "priority": "no-priority",
  "createdAt": "<unknown>",
  "dueDate": "<unknown>"
}