{
  "manageEntity": {
    "action": "Delete",
    "entityId": "1455007780",
    "entityType": "Track",
    "nonce": "0x7af72c9eb1a9fb6f8ccb62ab619e23bd2ae274af2b7d32dce70f453d05c88503",
    "signature": "0xb468bb8f80b31e074447325786b1101a67bbcfced8e64ee0f5df1b6506662f497af3c54be9ffec80580851a35edb6350bc9b46aba97616686317fa9817a1e0ad1c",
    "signer": "0x3066dc867693799740F62A7d5fF493b9C4Be5511",
    "userId": "119653837"
  }
}