curl --request GET \
  --url https://drb.coinbase.com/api/v2/private/get_block_trade \
  --header 'Content-Type: application/json' \
  --data '
{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "private/get_block_trade",
  "params": {
    "id": "61"
  }
}
'

{
  "jsonrpc": "2.0",
  "result": {
    "id": "61",
    "timestamp": 1565089523720,
    "trades": [
      {
        "amount": 10,
        "block_trade_id": "61",
        "direction": "sell",
        "fee": 0.00025,
        "fee_currency": "BTC",
        "index_price": 11738,
        "instrument_name": "BTC-9AUG19-10250-C",
        "iv": 0,
        "liquidity": "T",
        "matching_id": null,
        "order_id": "343062",
        "order_type": "limit",
        "price": 0.0001,
        "state": "filled",
        "tick_direction": 3,
        "timestamp": 1565089523719,
        "trade_id": "92437",
        "trade_seq": 37
      },
      {
        "amount": 190,
        "block_trade_id": "61",
        "direction": "buy",
        "fee": 0.00000164,
        "fee_currency": "BTC",
        "index_price": 11737.98,
        "instrument_name": "BTC-PERPETUAL",
        "liquidity": "T",
        "matching_id": null,
        "order_id": "343058",
        "order_type": "limit",
        "price": 11590,
        "state": "filled",
        "tick_direction": 3,
        "timestamp": 1565089523719,
        "trade_id": "92435",
        "trade_seq": 25350
      }
    ]
  }
}