{
  "manageEntity": {
    "action": "Repost",
    "entityId": "521391613",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x1231448da7ed48d4027127cc5f96c38cecf1e4e6cb8a917e246c31f4bd8dd56a",
    "signature": "0x9fd50e9d4dea0693bfca6cac033e466673c58b07bad59525f9b828ab38699acc6c9e45b8af27d14581ba17e21863c2552213feb05138b7cd60380c4bf7e8de171b",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}