curl --request GET \
  --url https://api.planetscale.com/v1/organizations/{organization}/databases/{database_name}/cidrs/{id} \
  --header 'Authorization: <api-key>'

{
  "id": "<string>",
  "schema": "<string>",
  "role": "<string>",
  "cidrs": [
    "<string>"
  ],
  "created_at": "<string>",
  "updated_at": "<string>",
  "deleted_at": "<string>",
  "actor": {
    "id": "<string>",
    "display_name": "<string>",
    "avatar_url": "<string>"
  }
}