tx 0x3f1a5e3d06a18498bc4500f2bf20e732bd7c4e4cf3c2c91f09482f3d1c9dfc3dCopy

payload

{
  "ModifyOrder": {
    "new_size": 122151457,
    "order_id": 12723471,
    "new_price": null
  }
}