curl --request GET \
  --url http://localhost:3000/master/users/{userId} \
  --header 'X-API-Key: <api-key>'

{
  "user": {
    "user_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
    "email": "[email protected]",
    "organization": "<string>",
    "tier": "free",
    "status": "active",
    "created_at": "2023-11-07T05:31:56Z",
    "updated_at": "2023-11-07T05:31:56Z"
  },
  "apiKeys": [
    {
      "key_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a",
      "key_prefix": "<string>",
      "name": "<string>",
      "permissions": {
        "read": true,
        "write": true,
        "admin": true
      },
      "scope": {},
      "status": "active",
      "created_at": "2023-11-07T05:31:56Z",
      "last_used": "2023-11-07T05:31:56Z",
      "rate_limit": 123
    }
  ],
  "usage": {}
}