{
  "manageEntity": {
    "action": "Save",
    "entityId": "1292836832",
    "entityType": "Track",
    "nonce": "0x9952f11dcb94eb9a367ba8937a3f5c7c51e30e01262373f7cf15ab7b74eb20df",
    "signature": "0x693e199c1e48a57c08955c5503c39de6d184efa8e6d0c56f1f80314d02af217f0cb38e220a24506f3e6aadc72803fca13b3067f81859f97d08188dd6381547431c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}