UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'OVtKG4NZpvJeYJvCy73MKz0gmjtdFdb3LhG3/FYUZ0s=' 
WHERE 
  key_id = '51955ff95cda1c59c5f8ea239f604e005d7249a8bd188dfc2c939270d2c0ec25' 
  AND (
    token = 'OVtKG4NZpvJeYJvCy73MKz0gmjtdFdb3LhG3/FYUZ0s=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )