UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'LegUns9+kRJZ/vFKATVbPgEHUdqX8EKqmB3KjbgUHCE=' 
WHERE 
  key_id = 'c68b44a53c6a146475bf018413ac2bb8642368f18e5f3778874303a24c8556e5' 
  AND (
    token = 'LegUns9+kRJZ/vFKATVbPgEHUdqX8EKqmB3KjbgUHCE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )