{
  "manageEntity": {
    "action": "Delete",
    "entityId": "646272254",
    "entityType": "Track",
    "nonce": "0x29861b72e234557a97f8c1fa2dbad12e8d977de98bfd1ba6aaef23f49d572d6c",
    "signature": "0xff0904b559e13c076d0137a21551cbb9a1920819fc488602f6fc3a6529c5332c71de270e1aeecb7d980c297c82cf7c3391aeb6e18c65f3496b9f425c69ddf6b61c",
    "signer": "0xeAeC84d46E38F75c8216e3037a11fc41D98346fD",
    "userId": "179898534"
  }
}