UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'Q7tSnNk6BxCmzKlZlHtPF0vGFBWDMrp3xpeTtVXvn2M=' 
WHERE 
  key_id = 'd845e9639c817cad06c13c505bec7e4c29673af3f9521c762b1aeb932c8976d4' 
  AND (
    token = 'Q7tSnNk6BxCmzKlZlHtPF0vGFBWDMrp3xpeTtVXvn2M=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )