UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'ErKv5NVf+OlaeJntWt7Uij1NFQ68WiGnbbLno0QNHvc=' 
WHERE 
  key_id = '1b46e37312f8bec14bb83842aa2040309916a28983e7692fa9356b259444623b' 
  AND (
    token = 'ErKv5NVf+OlaeJntWt7Uij1NFQ68WiGnbbLno0QNHvc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )