curl --request POST \
  --url https://api.getovra.com/v1/mandates/options \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "agent_id": "<string>",
  "expires_at": "2023-11-07T05:31:56Z",
  "constraints": {}
}
'

{
  "error": "<string>"
}