UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'L8m796+V/3k+1CwUB5/4Y2GphnIee+FqOJhcie7sDTk=' 
WHERE 
  key_id = '68264130bad54a6e4a16ad184b267a8dd58e44265f2d913a7e293f4259a1ef12' 
  AND (
    token = 'L8m796+V/3k+1CwUB5/4Y2GphnIee+FqOJhcie7sDTk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )