UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'z4c+JNvmunyX82z6IOZnDPSc9c+XPWwa7q7QRIyBwg0=' 
WHERE 
  key_id = 'c6a8d4e113c9f4b3e00baf76f11f71ee525f7c50567a9fb6cec22919b116e652' 
  AND (
    token = 'z4c+JNvmunyX82z6IOZnDPSc9c+XPWwa7q7QRIyBwg0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )