tx 0x8fcfd4cd63790b641d0c1ea59ac97a3ebcb9bbc2eee3f65bf1e3ff4dad2caaeaCopy

payload

{
  "ModifyOrder": {
    "new_size": 501764000,
    "order_id": 456960825,
    "new_price": 8639000000
  }
}