tx 0x61018a233c507dc2900afa6efcf4f30e7876ff9d309fe8e48bfad39d96350d4cCopy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 3876775699,
    "order_id": 388375041,
    "new_price": 6440000000
  }
}