Update the nominal power of an Entity

curl --request PUT \
  --url https://platform.realto.io/api/v1/entities/{entityId}/nominal-power \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '{
  "nominalPower": 123
}'

{
  "nominalPower": 123
}