UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a6znInHQ4MWk+Aafhy41iUh/d6fbo5yt3MP62QEEFYg=' 
WHERE 
  key_id = '6f3d765269b157200f81ea767bb43a64032f10ca28e8ce3d9593d51eadfc6298' 
  AND (
    token = 'a6znInHQ4MWk+Aafhy41iUh/d6fbo5yt3MP62QEEFYg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )