UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'EAgqeEHqSy+wX/Ji8E/5f46tWM1OYiX5M2rBgLYXNMs=' 
WHERE 
  key_id = '3392b836fcb4f4195b6558b1b3a0b25a584281f1e807d8a8b9979c5b387d9284' 
  AND (
    token = 'EAgqeEHqSy+wX/Ji8E/5f46tWM1OYiX5M2rBgLYXNMs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )