[
  {
    "key": "gotham:default-master",
    "title": "Gotham Default Master",
    "page_templates": ["default", "centered"],
    "blocks": [
      { "block_key": "navbar", "title": "Main Navigation", "content": { "menuName": "main" }, "slot": "header", "sort_order": 0 },
      { "block_key": "slot", "title": "Main Content Slot", "content": { "slotName": "main", "placeholder": "Page content will appear here" }, "slot": "main", "sort_order": 0 },
      { "block_key": "gotham:footer", "title": "Site Footer", "content": { "showSignup": true }, "slot": "footer", "sort_order": 0 }
    ]
  }
]