UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'KtiC0Z0ZpKj0hq8iv1GkAjvFeRxhrK39ycQjiH2QQxE=' 
WHERE 
  key_id = '6cb7926515647c4b8f759a537d9793048be1d8bc363fc2542d8ead0a70049795' 
  AND (
    token = 'KtiC0Z0ZpKj0hq8iv1GkAjvFeRxhrK39ycQjiH2QQxE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )