{
  "manageEntity": {
    "action": "Save",
    "entityId": "2113084819",
    "entityType": "Track",
    "nonce": "0x66e5b0f5fc1aed423f268612ccba302fd4c4095f215012b621ed7bd2c836137e",
    "signature": "0xc92ede7baf2f07e5981f4898b547f8bb2ebf1586056a9273a6b3896b9b017bc655e60bcb19d4942c98af6e6169037e634fb4583c67d551d509ca9da3556448ea1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}