UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '/F3jXDB7QBDF5ZAukXFHFr2sPa703VLOaJcpkd2QM10=' 
WHERE 
  key_id = '51940e483ad9d67f56229fa98b085b5bf85a8ac806a7c58cb6a2b08110a24970' 
  AND (
    token = '/F3jXDB7QBDF5ZAukXFHFr2sPa703VLOaJcpkd2QM10=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )