{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "768987",
    "entityType": "Track",
    "nonce": "0x413c1fe0df840309024b644ecabf6cdd617358a060c324cc939b6ddd8241fca7",
    "signature": "0xfbd4a01ac546bb458e55829f7e11b654b83a6fac8126441c7e3013a5dabab8520bee4b762cc966ec99a719d9891eabd9f219780fad9ddc0357bace2480ccc5591c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}