The amount held on deposit for a registered subaccount. This should account for the fact
that one storage item's value will increase by the size of an account ID, and there will
be another trie item whose value is the size of an account ID plus 32 bytes.
The amount held on deposit for a registered subaccount. This should account for the fact that one storage item's value will increase by the size of an account ID, and there will be another trie item whose value is the size of an account ID plus 32 bytes.