{
  "manageEntity": {
    "action": "Delete",
    "entityId": "303276118",
    "entityType": "Track",
    "nonce": "0xa77b07032029a4e16d5a8d36ee006099fa945846c8b63c1ab4a093ef4d0e0525",
    "signature": "0x3f888423042ae3374253646902e746ca8f7f4f8e3964acb71511184987500cd619610d9e8029ca82695d83f813a15c255e751f50b6730aec16f388fc0047431f1b",
    "signer": "0x406e72F6E0477C3f341Eba89411b7939AEF4533B",
    "userId": "50722"
  }
}