{
  "manageEntity": {
    "action": "Save",
    "entityId": "1032908",
    "entityType": "Track",
    "nonce": "0x0683afdc8a91f1ad013a15a56f18c0d9482a5f3ec239d4c652793d2a0b8fce08",
    "signature": "0x8fdc8e38b5a0b24bff42f5a0f7c2e9aed52fa35c2708a08defbb2657049de1684038992f92d4c0a89fd43e4dead9f96738e28fbbef7498ef790bd7e1ca59d32c1c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}