tx 0x4f7955ceddeb00ccb407133f0e8f0d89fecf64ffece255240550738dfb729f8fCopy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 6440256890,
    "order_id": 388157274,
    "new_price": 6470000000
  }
}