{
  "manageEntity": {
    "action": "Repost",
    "entityId": "507766640",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x348652b74cd0364e8dbc456fc45a38dfbe723c99ef56313bc2e6953c9a2ca565",
    "signature": "0xf908cc9a2322f2e0c71b0138f4200d066ada4ba36be4b1bb695643a1a8ebad586e703de4485e3c0820f2c2e52078b60eafb4145534f7fefea065cd858b2bca7c1c",
    "signer": "0x48FD75f1b7D81A96b8b8624aB7040523C402c202",
    "userId": "325172820"
  }
}