UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'EMvHbWtb7QQttSBjlroqRzEZchso1NsX8BtEC3hqjxQ=' 
WHERE 
  key_id = '51ca59cc7e7bdfeee539a7011fbe71a9671b7e76606a33fe9c25787e6b266e0b' 
  AND (
    token = 'EMvHbWtb7QQttSBjlroqRzEZchso1NsX8BtEC3hqjxQ=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )