UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'mEp/m5eYBovkvQWNQgTeQcQe5XrlBvU6h3uu2hy9GKg=' 
WHERE 
  key_id = 'e0efb599fbf5c23798b521d2170430b9e145385a503c4d12ec586c774be90c21' 
  AND (
    token = 'mEp/m5eYBovkvQWNQgTeQcQe5XrlBvU6h3uu2hy9GKg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )