UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'eLFr2nheFon64CsB6kWTuojXiWYIrFNOVfrbkxUGIOo=' 
WHERE 
  key_id = '1e8a4d2d8e842950acb44ac144a1f7f5847d279db84561a968b33ee2cafb5831' 
  AND (
    token = 'eLFr2nheFon64CsB6kWTuojXiWYIrFNOVfrbkxUGIOo=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00025