tx 0xb8fcae3500a1873820668ecee5dc3be5a2c4aacc1e1b41f1037865e3b9e981feCopy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 6389375921,
    "order_id": 410972114,
    "new_price": 6439000000
  }
}