Assign an attribute to a user

curl --request POST \
  --url https://api.cal.com/v2/organizations/{orgId}/attributes/options/{userId} \
  --header 'Authorization: <authorization>' \
  --header 'Content-Type: application/json' \
  --data '{
  "value": "<string>",
  "attributeOptionId": "<string>",
  "attributeId": "<string>"
}'

{
  "status": "success",
  "data": {
    "id": "<string>",
    "memberId": 123,
    "attributeOptionId": "<string>"
  }
}