UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 300, 
  token = 'QXrBpHd8UvE6A8dvuhlxuFPc18p8ZX7jKe+eaVj7V+M=' 
WHERE 
  key_id = 'f738d5c668b8675ae7eb1afeedd9e45e1b5e54aa94f98a5190b667c1223b48a2' 
  AND (
    token = 'QXrBpHd8UvE6A8dvuhlxuFPc18p8ZX7jKe+eaVj7V+M=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )