{
"manageEntity": {
"action": "Save",
"entityId": "427723247",
"entityType": "Track",
"nonce": "0x32288ecd8663c2d915b1fd4dab9b228339e0328019a999849a78a989f4112754",
"signature": "0x03a0c97f0bd5eb8f0575a08b600ebcba75708898564218b980c827fbead4d35074b70225ee3857956f81989b65bd99ff62f7e5463640ab3cac0e03b3a32336971c",
"signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
"userId": "854614078"
}
}