UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'u4PKkqlmWp3wHmdC7HCu4ggJVDRocB2hdI2kbsWon6k=' 
WHERE 
  key_id = '6e4cf9a3f30f26ce69f983eef497465e5040de05db4bd461a973c60eb753c678' 
  AND (
    token = 'u4PKkqlmWp3wHmdC7HCu4ggJVDRocB2hdI2kbsWon6k=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )