UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'U5JM1Sb4pSjKvwdlmeBI+SjLLcqcLwnBsV3YP42vumc=' 
WHERE 
  key_id = '52d4eec1abde22411462fb49c9cfd5f7cfe68e296faca500a9abc1a5e41ca50c' 
  AND (
    token = 'U5JM1Sb4pSjKvwdlmeBI+SjLLcqcLwnBsV3YP42vumc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )