Obtain Account Address From Entity's ID

To convert an entity ID (Base64 encoded), e.g. nyjbDRKAXgUkL6CYfJP0WVA0XbF0pAGuvObZNMufgfY=, to a staking account address, run:

oasis-node stake pubkey2address \
--public_key nyjbDRKAXgUkL6CYfJP0WVA0XbF0pAGuvObZNMufgfY=

This will output the staking account address for the given entity ID:

oasis1qrvsa8ukfw3p6kw2vcs0fk9t59mceqq7fyttwqgx

You can find your entity's ID in the id field of the entity.json file.