{
  "chainId": 97,
  "sequence": 7173,
  "payload": [
    {
      "channelId": 3,
      "sequence": 6855,
      "payload": {
        "packageType": 0,
        "crossChainFee": 1000000,
        "content": {
          "symbol": "MTT-B20",
          "contractAddress": "0x55f1550a56bccef953c695b8aac84f87e18c85ef",
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}