tx 0x55854bdf9e7c4a12eafe3e3b15bf742cd3af1b523d1e75f2e2bf9eaf2fc5e3bfCopy

payload

{
  "ModifyOrder": {
    "new_size": 4371984,
    "order_id": 51564070,
    "new_price": null
  }
}