{
  "manageEntity": {
    "action": "Unrepost",
    "entityId": "192290",
    "entityType": "Track",
    "nonce": "0x2286b51dbf70e223bcc14bd8ddc3bfcd65051608aa387aefaa02a316b5141cb1",
    "signature": "0xb97e9e535b896e4418d3d2ad79c34729894831bbe9d0011ac7a8ecf85961b95814afe24faa29a929ab8550b5621f75ad250347d89b4a4b8859af53bcbcfda9241b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}