tx 0x31779864a4d78d1a600167177f6a22e60f1206fcd6bb648e2bcfbd2f8099ade9Copy

order would be filled (post-only rejected)

{
  "ModifyOrder": {
    "new_size": 2315574040,
    "order_id": 388381285,
    "new_price": 6431000000
  }
}