UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'tU/1X1jfZrKEd3HccqfTyy9DxkgsUTxEtb3vWv8W2dE=' 
WHERE 
  key_id = '3c5e3321786f238c10acfc23757629ad05da834b6e28374d49de8061c3554600' 
  AND (
    token = 'tU/1X1jfZrKEd3HccqfTyy9DxkgsUTxEtb3vWv8W2dE=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )