To create a validator at impeiria node, you should import the data of your validator to the validator.json file
symphonyd tx staking create-validator \
--amount 10000000note \
--from $WALLET \
--commission-rate 0.1 \
--commission-max-rate 0.2 \
--commission-max-change-rate 0.01 \
--min-self-delegation 1 \
--pubkey $(symphonyd tendermint show-validator) \
--moniker $MONIKER \
--security-contact "" \
--identity "" \
--website "" \
--details "a validator blockchain" \
--chain-id symphony-testnet-3 \
--gas-adjustment 1.4 \
--gas auto \
--fees 800note \
-y