curl --request GET \
  --url https://api.portkey.ai/v1/admin/users/{userId} \
  --header 'x-portkey-api-key: <api-key>'

{
  "object": "user",
  "id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
  "first_name": "<string>",
  "last_name": "<string>",
  "role": "admin",
  "email": "[email protected]",
  "created_at": "2023-11-07T05:31:56Z",
  "last_updated_at": "2023-11-07T05:31:56Z",
  "workspace_ids": [
    "<string>"
  ]
}