tx 0x56398815a146d56ad757ae2906d3e2010b88ba4b0f83a18c4fe6feeeb06f4cfbCopy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3841926055,
    "order_id": 388375041,
    "new_price": 6518000000
  }
}