WITH tr AS (SELECT DISTINCT user_address as tracer_users, contract_address
FROM ethereum.erc20_balances
WHERE contract_address = '0x9c4a4204b79dd291d6b6571c5be8bbcd0622f050'),
tok AS (SELECT DISTINCT tx_from_address as tracer_users_using_tokemak, contract_address as contract_address_tok
FROM ethereum.events_emitted
WHERE contract_address = '0x15a629f0665a3eb97d7ae9a7ce7abf73aeb79415')
SELECT tracer_users, tracer_users_using_tokemak
FROM tr LEFT JOIN tok ON tracer_users = tracer_users_using_tokemak