UPDATE 
  cscart_june_setuplock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'BD59EA7Pcg4DSWUVIjkb5mCy35DncP0Pd4rKPMlGBPU=' 
WHERE 
  key_id = '770af9fd52cdfef6e98f3d9f61d8a6323f89d9b252a01f41e3172e9c06ff4168' 
  AND (
    token = 'BD59EA7Pcg4DSWUVIjkb5mCy35DncP0Pd4rKPMlGBPU=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )

Query time 0.00029