Per the source, Liverpool's bid consists of €1m up front, and another €1m depending on bonuses and has been described as 'irrefutable' both by Fluminense and the player. 1
The player is of German nationality and that will help the move run more smoothly because it will negate the need for a work permit in the UK. 1
Liverpool are also believed to have offered a job to the player's father. 1

Requests left for this source (teamtalk.com): 5