UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/eaYQrPRPCl5ULGZRCSldResvBlZWZHaMputalLsQoE=' 
WHERE 
  key_id = '5393c3ae422d0a15c8ca8a2cb66e74691b846a398df5aacbb29963afa3113886' 
  AND (
    token = '/eaYQrPRPCl5ULGZRCSldResvBlZWZHaMputalLsQoE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )