curl --request POST \
  --url https://api.zapier.com/trigger-inbox/v1/inboxes/{inbox_id}/messages/lease \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "lease_limit": 1
}
'

{
  "lease_id": null,
  "leased_until": null,
  "results": [],
  "inbox_attributes": {
    "status": "active",
    "paused_reason": null
  }
}