{
  "manageEntity": {
    "action": "Save",
    "entityId": "936556609",
    "entityType": "Track",
    "nonce": "0xc4672260688fc84df678eb14a062d73a23496c6002d8117aeb947f3f2aa4b36a",
    "signature": "0x06a099a67b527b4e8a57a38dc75a1f0d33fc565ec2b6e1ec9d1de2d0fda19a8a674bbdf3b56cb523505b6f785c172201e25c140a811899290e205073288b30441c",
    "signer": "0xA66d5981794A5e084FBD9adBFF28F465924fb9a9",
    "userId": "980224167"
  }
}