UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'lx1XDebIei5Go5t5czIR1lBaD3sd4tUtW4YspDT4KF0=' 
WHERE 
  key_id = '6c51a43b00e6c05cb90918b0f023c0e5d52d2aecff1a2c37f30b8d9f2266c4c8' 
  AND (
    token = 'lx1XDebIei5Go5t5czIR1lBaD3sd4tUtW4YspDT4KF0=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )