{
  "err": {
    "code": 500,
    "msg": "invalid chain"
  },
  "eq_value_token_amt": "",
  "bridge_rate": 0,
  "perc_fee": "",
  "base_fee": "",
  "slippage_tolerance": 0,
  "max_slippage": 0,
  "estimated_receive_amt": "",
  "drop_gas_amt": "",
  "op_fee_rebate": 0,
  "op_fee_rebate_portion": 0,
  "op_fee_rebate_end_time": "0"
}