UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'UMgvoe1mPHaIwiENljy41VDJjWycNI8wptbcG/BmgnM=' 
WHERE 
  key_id = '68c81c807ba4b6853bda5ade0a3f195574756e2d09a47e92ac03516f7d250f16' 
  AND (
    token = 'UMgvoe1mPHaIwiENljy41VDJjWycNI8wptbcG/BmgnM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )