{
  "manageEntity": {
    "action": "Save",
    "entityId": "11498228",
    "entityType": "Track",
    "nonce": "0xba5d8542b88f52b46971bc81888f5df0e357c694e08e3209081b1c5bf4abb673",
    "signature": "0x1fe80970172ce9c27c6866336e00fbd8c616a6de1fcab43049fe685b259a70a85892d7d314179ad67800550788799fb1f615d609544a1c28f4a70ea44acc257e1c",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}