{
  "manageEntity": {
    "action": "Save",
    "entityId": "79022",
    "entityType": "Track",
    "nonce": "0x350adfe262bc57b6afcffceba1873a75e7a6a90ea7d592610b244a278047636f",
    "signature": "0x5a5d34a9ec193f2e89c23858e51497d9496d344a47380abfbfdffc3efe891171144a74d522d7c619f3218d2a907d6af9a124bd5b99c764bf02e0365e5b88b5bc1c",
    "signer": "0x53d8e61f7BdCd69E26B5AAe8F197464091224DB4",
    "userId": "99786"
  }
}