UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Mt1Ob/u1I4xHNqlIcxqXn2jue/7CqwRqs4Hu+GBGCPA=' 
WHERE 
  key_id = 'c4c5f9e3e2fd644c562f238dc2e5d798f1eb2d13d2b2e81dfa1f9eb56d029853' 
  AND (
    token = 'Mt1Ob/u1I4xHNqlIcxqXn2jue/7CqwRqs4Hu+GBGCPA=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )