UPDATE 
  cscart_lock_keys 
SET 
  expiry_at = UNIX_TIMESTAMP(NOW()) + 30, 
  token = 'MeZR1GYZCSrSnnirtXk7pEdxteAkFtiUpQiFw5xz+XY=' 
WHERE 
  key_id = '04843437542ab2bb08f8ea5b206e657ecb09ec6d8dc560ce82446680f451a857' 
  AND (
    token = 'MeZR1GYZCSrSnnirtXk7pEdxteAkFtiUpQiFw5xz+XY=' 
    OR expiry_at <= UNIX_TIMESTAMP(NOW())
  )