リクエストの有効期限

curl --location 'https://api.box.com/2.0/sign_requests' \
    --header 'Content-Type: application/json' \
    --header 'Authorization: Bearer ej...3t' \
    --data-raw '{
      "days_valid": 30,
      "parent_folder": {
        "id": "234102987614",
        "type": "folder"
      },
      "source_files": [
        {
          "id": "1358047520478",
          "type": "file"
        }
      ],
      "signers": [
        {
          "email": "signer@example.com",
          "role": "signer"
        }
      ]
    }'