{
"manageEntity": {
"action": "Save",
"entityId": "238758",
"entityType": "Track",
"nonce": "0xc16a51b245cf019af44f706fc6737a37272812f6465a703fa884bfec317a2745",
"signature": "0x4519afef41f86115afe886ab3de12f85da152406072f0c36fd88449875708ddf0f756cbbcaf4014cc20a0d51c7bee75e06814f2a0703d7be693d5911608c38061b",
"signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
"userId": "854614078"
}
}