{
"manageEntity": {
"action": "Save",
"entityId": "2056506848",
"entityType": "Track",
"nonce": "0x885b1fb80027fa5c9d782ed7466362e69168855d8038505c36cdc2ffb6624067",
"signature": "0xe15af2f9a08d13c61826eca4a3a779812d7dc68bd5983f421f51f059ed7cfcfb636604454ee163c440cdd1d120a1571ea57472db0d031493df8fa994403123551b",
"signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
"userId": "854614078"
}
}