UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'pB7X9pN1TbtwcHVqHV5mWm8a3u910G/zPOswNV8yqAc=' 
WHERE 
  key_id = '51b4226a67f18ee68f7ff5cac1c86a2fbb5c9de759cf0ef32eba1382e2da0a1b' 
  AND (
    token = 'pB7X9pN1TbtwcHVqHV5mWm8a3u910G/zPOswNV8yqAc=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )