INSERT INTO cscart_multi_declock_keys (key_id, token, expiry_at) 
VALUES 
  (
    '4593be176396ed7b865ce7642b5adb75452e51d0410bf587c61696074fbdb80f', 
    'MDShUHKav+r2cudocb0neWpeJHwZ3WdqLzWMPaVWaAE=', 
    UNIX_TIMESTAMP(NOW()) + 300
  )

Query time 0.00027

Result

int(1)