curl --request PATCH \
  --url https://tilt.io/api/v1/backchannel/preferences/notifications \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "channel_types": {
    "email": true,
    "push": true
  }
}
'

{
  "workflow": "<string>",
  "channel_types": {
    "email": true,
    "push": true
  }
}