UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'WCIKPWCkBKhlNuOQP7LisuIVB1OkVZS4YaS/Hy64l9k=' 
WHERE 
  key_id = '30ffc0601b463bfae45c7c8f07f8777973ca1ea5df982494709c918786d731b1' 
  AND (
    token = 'WCIKPWCkBKhlNuOQP7LisuIVB1OkVZS4YaS/Hy64l9k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )