tx 0xf5ac4970bd1ff5a8042cabf44694caa7780d4b426c6147e7c470b7cb2f47e4dcCopy

reduce-only order has no opposing position

{
  "ModifyOrder": {
    "new_size": 4144931584,
    "order_id": 351964939,
    "new_price": 6198000000
  }
}