tx 0x169544c4dcfd3a92b3b9556aff3f8e70f3507f7a1b4f08451e9e9d464b7b2e9cCopy

payload

{
  "ModifyOrder": {
    "new_size": 599371,
    "order_id": 19583427,
    "new_price": null
  }
}