KSI, also known as Olajide Olayinka Williams Olatunji, boasts 75.3 million followers across social platforms.
The 32-year-old has now outlined his ambitious plans for the club, including eventual promotion to the Premier League.
“I’m so excited to start this journey,” KSI said. “It’s gonna be a rollercoaster for sure but I hope to bring Dagenham & Redbridge back to the glory days.
“And once we reach that point, I want to go even further. Reaching the Premier League would be a dream. And I believe it is 100 per cent doable. It will take a long time, so to the Daggers fans, please be patient.
“I want you to know that I am fully committed to making sure Dagenham & Redbridge is a team that everyone will know worldwide, and will be an exciting team to watch and support.”