UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'B9eGmpPU1CRzj5jStYnSy1+/04uOWzG3vRbQR4gWRrE=' 
WHERE 
  key_id = '4bed3af50140915cb8dbed5e3a785e17147b4f58a393239bf19e9de66e718f54' 
  AND (
    token = 'B9eGmpPU1CRzj5jStYnSy1+/04uOWzG3vRbQR4gWRrE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )