Deal (index_topic_1address currencyPayer, index_topic_2address tokenReceiver, uint256 tokenAmount, uint256 tokenPrice, address currency, index_topic_6address token)
[topic 0]:0xa3e70ed7d302d8ea88c53a759a815388fef7a05445904d79b6c26dbbdb6dc170
[topic 3]:0x000000000000000000000000f8afa9ac4517057c7f62d3b7d00ae2f5a3afb453