curl --request GET \
  --url https://api.s15x.dev/database/linkinfo \
  --header 'API-Authorization: <api-key>' \
  --header 's15x-roblox-id: <s15x-roblox-id>'

{
  "link": {
    "id": "<string>",
    "active": true,
    "linked_at": "<string>",
    "roblox_id": "<string>",
    "updated_at": "<string>",
    "discord_id": "<string>",
    "metadata": [
      {}
    ],
    "unlinked_at": "<string>"
  }
}