UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Mx3LRRSoh85t9ErS9Dgm8If4/GZgKugwVun93gEdLF4=' 
WHERE 
  key_id = '520b7d49d21d023ca99a9595173d9559548575140744cd2853f9036926903b21' 
  AND (
    token = 'Mx3LRRSoh85t9ErS9Dgm8If4/GZgKugwVun93gEdLF4=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )