UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'EPDm7Ln6wo6AiKBT8Mey/g3vzypQrk/PGoKBMmOgPCU=' 
WHERE 
  key_id = 'fe41dfed52727f7bef1c3aece513a973d9b62d617d814712141ab26cba5d7811' 
  AND (
    token = 'EPDm7Ln6wo6AiKBT8Mey/g3vzypQrk/PGoKBMmOgPCU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )