Mark channels as read

curl --request POST \
  --url https://api.fluxer.app/v1/read-states/ack-bulk \
  --header 'Authorization: <api-key>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "read_states": [
    {
      "channel_id": "<string>",
      "message_id": "<string>"
    }
  ]
}
'

{
  "code": "ACCESS_DENIED",
  "message": "<string>",
  "errors": [
    {
      "path": "<string>",
      "message": "<string>",
      "code": "<string>"
    }
  ]
}