UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'h4uGr4RMKFt30wB+oFzKfieNXGa05C/6G2Vq8ez/feg=' 
WHERE 
  key_id = '52501d7752a510d03fa87cfae535a564bd081da3029ff7c6b5b131a0412f0b27' 
  AND (
    token = 'h4uGr4RMKFt30wB+oFzKfieNXGa05C/6G2Vq8ez/feg=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )