{
  "manageEntity": {
    "action": "Save",
    "entityId": "822800752",
    "entityType": "Track",
    "nonce": "0xd883a2e929b234501806b6e9b95768635a284d033b732561e0e4a19ef54acc3a",
    "signature": "0x8ff353364112f33dd62e2a18a427b45db0d4bde002d691f64c3e06f13c1208b251de408dfb7fb01c906b82990dcf3feebc1c317388a6fd349619653f12e806b91b",
    "signer": "0xF08935327AeC6306C8d0eb92999567e5496848C9",
    "userId": "989073793"
  }
}