UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'r3gqrMQANmoS19BosVaUSBfjoqkmgla12GtkIlsZoWI=' 
WHERE 
  key_id = 'be6a53277ef44e8df1bd33f051f61799f1038a0e4c59d4c803d0b0364c9d5985' 
  AND (
    token = 'r3gqrMQANmoS19BosVaUSBfjoqkmgla12GtkIlsZoWI=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )