Allows the client to get the current server public key, or the public key of one of its own cryptographic keys. The client can use this key to validate signatures server in relation to legal identities, smart contracts, tokens, etc.Note: If a Key ID is provided, information about one of the keys of the client account is returned. If not Key ID is provided, information about the the public server key is returned.Note 2: If no Key ID is provided, resource requires no authentication. If a Key ID is provided, a Bearer token identifying the client account must be provided.