curl --request GET \
  --url https://api.opal.dev/v1/access-rules/{access_rule_id} \
  --header 'Authorization: Bearer <token>'

{
  "access_rule_id": "7c86c85d-0651-43e2-a748-d69d658418e8",
  "name": "Platform Engineering",
  "description": "This access rule represents all platform engineers in the company.",
  "admin_owner_id": "7c86c85d-0651-43e2-a748-d69d658418e8",
  "status": "ACTIVE",
  "ruleClauses": {
    "when": {
      "clauses": [
        {
          "selectors": [
            {
              "key": "<any>",
              "value": "<any>",
              "connection_id": "<any>"
            }
          ]
        }
      ]
    },
    "unless": {
      "clauses": [
        {
          "selectors": [
            {
              "key": "<any>",
              "value": "<any>",
              "connection_id": "<any>"
            }
          ]
        }
      ]
    }
  }
}