curl --request PUT \
  --url https://api.orbital-systems.com/client/showers/{id}/instantstart \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "actions": [
    {
      "id": 123,
      "action": "<string>",
      "active": true,
      "day": 123,
      "time": "<string>"
    }
  ]
}
'

{
  "actions": [
    {
      "id": 123,
      "action": "<string>",
      "active": true,
      "day": 123,
      "time": "<string>"
    }
  ]
}