{
  "manageEntity": {
    "action": "Repost",
    "entityId": "551557",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0xcfa093910759381edc78e80b2cf0716c71d66eef113ecea7ba95b51580b9dae5",
    "signature": "0x49d2ef55af56e3f48e83b79e5a7313c594987320f26f4a7ea9d9cdcd372f5cd6180ec44cac4a70d89f83424bc4b91e6dc0128cca728af2e218bc05e7fdbcf0d91b",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}