UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'RRLDQlq5ZztKxCmy+iN34XkP2ygc/cg7cDKirUsq5Tk=' 
WHERE 
  key_id = '4b638eb60591480fb86c4d2d40e81015be282a81b0610805d494114757f3dc61' 
  AND (
    token = 'RRLDQlq5ZztKxCmy+iN34XkP2ygc/cg7cDKirUsq5Tk=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )