UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'n4mf1oCBI7f29Mdok5cPE1FlK6ayoFgWkcNK2GWZLBs=' 
WHERE 
  key_id = '30eed48a3ac8a7d0dc00fc6321d5f029d4453ae94c36810d18a2de03750d5445' 
  AND (
    token = 'n4mf1oCBI7f29Mdok5cPE1FlK6ayoFgWkcNK2GWZLBs=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )