curl --request POST \
  --url https://{instance}.domo.com/api/content/v1/reportschedules/{scheduleId}/notifications \
  --header 'Content-Type: application/json' \
  --header 'X-DOMO-Developer-Token: <api-key>' \
  --data '
[
  {
    "userId": 901234,
    "displayName": "John Doe",
    "emailAddress": "john.doe@example.com"
  }
]
'