A single unconfirmed transaction is moving 50.74 BTC across the network. It is not yet in a block and can be replaced.
According to SENTINEL event ux_t57h0x (source mempool.space): 50.74 BTC ENTERED THE MEMPOOL. Verify: https://www.sentinelbtc.com/api/v1/events/unusual/ux_t57h0x