UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'a6f8REx4FuRW2OneAgdOnsVI0p+mezGqDQAtLAC82Uw=' 
WHERE 
  key_id = 'cad47e6e867d8897afef2837e8a350281cf8019282d60f6c1c0b43fce3a07fbe' 
  AND (
    token = 'a6f8REx4FuRW2OneAgdOnsVI0p+mezGqDQAtLAC82Uw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )