UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'z39A4Z7e5foNlei9TRqn2EdIjdaaAo49kp2N05t1CR8=' 
WHERE 
  key_id = '75a5bcda33e8271c618fc5578444b053180f9b265c802359b99948d613037f9b' 
  AND (
    token = 'z39A4Z7e5foNlei9TRqn2EdIjdaaAo49kp2N05t1CR8=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )