UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/sMljFTCUGAtLEOX/MTaR7eNNefwRnp0owGQpWpr8xM=' 
WHERE 
  key_id = '51a039494e1f1db9bf89b8b4d54aefda11e18542119d0cd7c2f596fa0667f51d' 
  AND (
    token = '/sMljFTCUGAtLEOX/MTaR7eNNefwRnp0owGQpWpr8xM=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )