Subscribe app to WABA webhook events

curl --request POST \
  --url https://api.wazapin.com/v1/waba/subscribe-webhook \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "phone_number_id": "<string>",
  "progress_id": "<string>",
  "waba_id": "<string>"
}
'

{
  "data": {
    "channel_id": "<string>",
    "completed_steps": "<unknown>",
    "created_at": "<string>",
    "current_step": "<string>",
    "error": "<string>",
    "id": "<string>",
    "organization_id": "<string>",
    "phone_number_id": "<string>",
    "step_status": "<string>",
    "updated_at": "<string>",
    "waba_id": "<string>"
  }
}