UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'W6YxIIGu4kUfAN17o3q6KRd8G4eha75ZsqS2je4TKGc=' 
WHERE 
  key_id = '78875d93b3582aa6cfa54c841bf347ab450c62b6f290e95c8e761623394bbe9a' 
  AND (
    token = 'W6YxIIGu4kUfAN17o3q6KRd8G4eha75ZsqS2je4TKGc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )