@Test
public void testDbPutHex() throws Exception {

    web3j.dbPutHex("testDB", "myKey", "0x68656c6c6f20776f726c64").send();
    verifyResult("{\"jsonrpc\":\"2.0\",\"method\":\"db_putHex\","
            + "\"params\":[\"testDB\",\"myKey\",\"0x68656c6c6f20776f726c64\"],\"id\":1}");
}