{
  "manageEntity": {
    "action": "Repost",
    "entityId": "439355483",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x673c9c415923b262a2ab40b30b39fd9e8c17d4b30ecc557a649cae279d4f9ea0",
    "signature": "0x66d54c16fcd5bf4632d4e804f45214f9f697299fa287a5b9c05cfc4e599b690d2864107c6525adb584c5127b1cada540a24dc19126ba41ca20cb2618e0eeb28f1c",
    "signer": "0xb6B208a8f79b1D88d245afa5aDB0a40d38cd6DD1",
    "userId": "528688046"
  }
}