UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'r+UQp2D6KqgdUwz+VmKE0jSeIkMpvfGz72CnL2D1Bnc=' 
WHERE 
  key_id = '6797ba1533d7de945679c0b6737f58de703b85b8d8f239d334e20d7c69156750' 
  AND (
    token = 'r+UQp2D6KqgdUwz+VmKE0jSeIkMpvfGz72CnL2D1Bnc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )