curl --request POST \
  --url https://api.machines.cash/user/v1/crypto/encrypt \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "items": [
    {
      "id": "card_name",
      "value": "agent.card"
    }
  ]
}
'

{
  "ok": true,
  "data": {},
  "summary": "success"
}