UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'r6tUCEY2mC0NA8vmS/ACV3kZdFne1RLYmKSDcMu8PmY=' 
WHERE 
  key_id = 'b2393675e00379413abc91d41835f50bc23c91913b0571fe44dedad76ebe0890' 
  AND (
    token = 'r6tUCEY2mC0NA8vmS/ACV3kZdFne1RLYmKSDcMu8PmY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )