User ID in external systems
{ "$schema": "https://json-schema.org/draft/2020-12/schema", "$id": "https://api-evangelist.github.io/deribit/json-schema/external_id.json", "title": "External Id", "example": "4b4cee3d-2dfc-4402-a9ae-f8f9785fa966", "type": "string", "description": "User ID in external systems" }