UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'txud2yTK76tWLkCH56pVlo33whZjKQgh3IDuIimMNZc=' 
WHERE 
  key_id = '9a64f248fc4d39f39023ca69351a30b87347acef6cc08f12378de3f2fea731fd' 
  AND (
    token = 'txud2yTK76tWLkCH56pVlo33whZjKQgh3IDuIimMNZc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )