tx 0x309a8792167d6a249e9bcc9f36e686cf0535843df4f908b2931fdcdbcb28865fCopy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 6389560434,
    "order_id": 377687843,
    "new_price": 6557000000
  }
}