UPDATE 
  cscart_multi_declock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'v4+kYzVx1TJTVpSmgi69FhUykq2gBsZfxzduFRk/3Gw=' 
WHERE 
  key_id = '37c950ef5cf5bcd799a18f406f8ca32067e16124f1c35f11e39082fcf888b653' 
  AND (
    token = 'v4+kYzVx1TJTVpSmgi69FhUykq2gBsZfxzduFRk/3Gw=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )