{
  "manageEntity": {
    "action": "Repost",
    "entityId": "857463327",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x737561bd6b048b5c546917f59335dbbd16b152e029afa53e08cc8ceb6ed1f3dd",
    "signature": "0x2be27d3ac5fdaa2d9d86c4f9054555f99fdc87fb35af5243242119aa3c8a507b19a91a628cd441888db14fe9abdb4f2c26906ad26341653ad842297b465fc7951b",
    "signer": "0x884490CFa947bC5C5d41834F53666866b78D19d6",
    "userId": "475900419"
  }
}