{
  "manageEntity": {
    "action": "Repost",
    "entityId": "857655624",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x707884d4878c3ca5f047e2ad14f87cb8a0d781fb0efb6f9e27e5d762cc555c13",
    "signature": "0x4bb441f8d3362cd833db7c49124e99ea8cea4751f342059c77d7d96b9dde62ce3fa9caee3938a49ea08ba8c6a259c0ee23fe4baf0d6c0081fd9440bc9b1d57841c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}