curl --request POST \
  --url https://compute.x402layer.cc/compute/instances/{id}/extend \
  --header 'Content-Type: application/json' \
  --data '
{
  "extend_hours": 123
}
'

{
  "x402Version": 123,
  "accepts": [
    {
      "scheme": "<string>",
      "network": "<string>",
      "maxAmountRequired": "<string>",
      "resource": "<string>",
      "description": "<string>",
      "payTo": "<string>",
      "asset": "<string>"
    }
  ],
  "api_schema": {
    "baseUrl": "<string>",
    "routes": [
      {
        "path": "/users/{id}",
        "summary": "<string>",
        "parameters": [
          {
            "name": "<string>",
            "required": true,
            "description": "<string>",
            "example": "<string>"
          }
        ],
        "requestBody": {
          "fields": [
            {
              "name": "<string>",
              "required": true,
              "description": "<string>",
              "example": "<string>"
            }
          ],
          "example": "<string>"
        },
        "responseExample": "<string>"
      }
    ]
  }
}