{
  "manageEntity": {
    "action": "Save",
    "entityId": "1136034",
    "entityType": "Track",
    "nonce": "0xa2d28d33e4273ad9d21728ec483a2e2fc158032ef1dcef86f97b1a6f9ea9f1bf",
    "signature": "0x4592bff77f6a8151b4085154d2017a5c0a49565ff4f2998e579b542bd0a04a8623ef6627338dc7e8854ac49fdcbde4b5d03d3441077038cea2c06ad63cd138f31c",
    "signer": "0xA66d5981794A5e084FBD9adBFF28F465924fb9a9",
    "userId": "980224167"
  }
}