tx 0x879e0fe9ea07d26bd27afda3d2b5210353dbc23f8643de1064dcbd930fe64b2bCopy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 2318957544,
    "order_id": 388381285,
    "new_price": 6450000000
  }
}