UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'b10ukUtF2FRRMDoM6q6tMP3gdKo2QczEf4YhwUA/6ec=' 
WHERE 
  key_id = 'dd3826e86f49ac25a9229e9f69e3ae71f8c65d508f0149d70d2a049076d29d35' 
  AND (
    token = 'b10ukUtF2FRRMDoM6q6tMP3gdKo2QczEf4YhwUA/6ec=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )