{
  "manageEntity": {
    "action": "Delete",
    "entityId": "900883780",
    "entityType": "Track",
    "nonce": "0x554bfb7872626485b7fc798416e0779321faa20ea47d0173b73fdbff2aa44996",
    "signature": "0x314f731f9dfac6840712e37258cbdb64dc5c384f63fe2fc6ffe71bdd3880a69d26d0912541cb17d790856676637f116d90403de5d10605d792852edcaa0e20661b",
    "signer": "0xbb784CE30A57AFA0D06231Be6E8Ab528F0a1a00E",
    "userId": "727467249"
  }
}