tx 0x3f81c644c85d960fcf8fcae61bbf68eaea45d4798b0d20050787ad471a616ea8Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 2351789573,
    "order_id": 388381285,
    "new_price": 6345000000
  }
}