A single unconfirmed transaction is moving 57.61 BTC across the network. It is not yet in a block and can be replaced.
According to SENTINEL event ux_1cndvli (source mempool.space): 57.61 BTC ENTERED THE MEMPOOL. Verify: https://mining.sentinelbtc.com/api/v1/events/unusual/ux_1cndvli