UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'r7BICARFPTuTbJihgJk6eJpo4fpRSek3tiY4VD49dZU=' 
WHERE 
  key_id = '284314d1627c8eecd142b846637d6827f32f6a6842de8997de783bb08ddbed3c' 
  AND (
    token = 'r7BICARFPTuTbJihgJk6eJpo4fpRSek3tiY4VD49dZU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )