Do we like this way of representing the NSEC to facilitate handwritten backup and typing back into the app? 

```
NSEC1-AGZ4-Q7LG-WN8V-4K5M
FA4KT-YK8G-VY0R-AHV2-CPL2
KJQ6M-SP8X-PZV2-PQX7-8ZKF
```