UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = '+RKgbQOmm2X3Iigf7MfF9JQ0cP2FdK72dMk4KsCgkRg=' 
WHERE 
  key_id = '83735073378ea2875c76f21740c6197708c4211d330360d77ab641ffe109f736' 
  AND (
    token = '+RKgbQOmm2X3Iigf7MfF9JQ0cP2FdK72dMk4KsCgkRg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )