{
  "manageEntity": {
    "action": "Save",
    "entityId": "109083",
    "entityType": "Track",
    "nonce": "0x2be7e9f2c00635460f95ee2c3a87094581d7a0a7de927a5bd1d23fc1fb80c67a",
    "signature": "0x82ff822f9caa5215127c59e0fbf0a285643734d4e219a7b6b4c776afb4a74ce4663b7a584bd7d8e51dae0ee5f7e629c28f8c1af15b4a204a070e52d580c9e6391c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}