tx 0xfa6aa1c730ca61d4d6b5ac5eef4e6a2e38dc4fddbabb98f7b0db83e62d3d6c6bCopy

payload

{
  "ModifyOrder": {
    "new_size": 304500,
    "order_id": 34201455,
    "new_price": null
  }
}