{
  "event": "envelope_sent",
  "envelope_id": "7e8f68e4c6df9395cd7ff48d69d7e2c1",
  "sent": "2019-12-17T05:30:00Z"
}
Triggered when an envelope is dispatched to all recipients and is ready for signing. If the envelope includes muted recipients, this event indicates your system can begin generating signing tokens for recipients to access the envelope. When muted delivery is used in combination with signing order, your application is responsible for determining when a recipient is eligible to sign. Recipients with a higher order value must wait until all prior recipients have completed their actions. To avoid unnecessary complexity, we recommend maintaining your own internal state for recipient readiness in these scenarios. 
{
  "event": "envelope_sent",
  "envelope_id": "7e8f68e4c6df9395cd7ff48d69d7e2c1",
  "sent": "2019-12-17T05:30:00Z"
}