UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u+pEdUv54iyZwCyUOvBIb0a61y3xKRlvjwSgemKbzkY=' 
WHERE 
  key_id = '76659eb4a92e06c77ee64716a87b60191b40078e88ea896c8c39e134be80947e' 
  AND (
    token = 'u+pEdUv54iyZwCyUOvBIb0a61y3xKRlvjwSgemKbzkY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )