Add a disaggregator for an Entity

curl --request PATCH \
  --url https://platform.realto.io/api/v1/entities/{entityId}/disaggregators \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "disaggregator": "Sandy"
}'

{
  "disaggregators": [
    "Sandy"
  ]
}