UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Em5dw4S2jddTpObmpTyeugmC4njuhdPdGYlugiXtCTk=' 
WHERE 
  key_id = '8db4d82219de04cf889a5fddc96e2fc80be400577e521120ecbffd4557762b72' 
  AND (
    token = 'Em5dw4S2jddTpObmpTyeugmC4njuhdPdGYlugiXtCTk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )