{
  "manageEntity": {
    "action": "Save",
    "entityId": "76361",
    "entityType": "Track",
    "nonce": "0x565b831c14f13a75e04bbc2eb500da2153aba18a5b675cdeca06a7c5d8973868",
    "signature": "0x24025252fffa7687a562a71e40d292f34220dfb936faa49d9e1516dece5e48ad333786adc7cc8161dece92c7f60f746f5657bb6dc222e0fa1e86464355a4487f1b",
    "signer": "0x9369ae91F6A1cC4996D9126FD991d64e7E24c805",
    "userId": "333763354"
  }
}