{
  "manageEntity": {
    "action": "Delete",
    "entityId": "1640745398",
    "entityType": "Track",
    "nonce": "0x53cf05d00e8e5c88189d8c083a8b447e127a281307593f44c25d313ec1ba6c27",
    "signature": "0xaaf33969ea533b68fa373c3d10bee583c5bc41cd22d61c3cd7197832d3dc2a405b00c489db3c1a53b643b4a90dc32805ef9b8d1bb899f73363dfd91c18fece621b",
    "signer": "0xE9A962d4b482e60cA928c7929B1CeC6954dAa660",
    "userId": "617238940"
  }
}