A single unconfirmed transaction is moving 50.34 BTC across the network. It is not yet in a block and can be replaced.
According to SENTINEL event ux_z4uh2b (source mempool.space): 50.34 BTC ENTERED THE MEMPOOL. Verify: https://www.sentinelbtc.com/api/v1/events/unusual/ux_z4uh2b