<span class="hl-0">res</span><span class="hl-1"> </span><span class="hl-5">=&gt;</span><span class="hl-1"> </span><span class="hl-0">console</span><span class="hl-1">.</span><span class="hl-7">log</span><span class="hl-1">(</span><span class="hl-0">res</span><span class="hl-1">));</span><br/><br/><span class="hl-4">// Listen to only the next transaction on the USDC contract.</span><br/><span class="hl-0">alchemy</span><span class="hl-1">.</span><span class="hl-0">ws</span><span class="hl-1">.</span><span cl