{
"manageEntity": {
"action": "Save",
"entityId": "2058189299",
"entityType": "Track",
"nonce": "0x30a9a408c68b7bf2c0e9784eb718456afcfa04c1e0a7e6642d259904326c723d",
"signature": "0x3563ef59bd9796a23bac3504252bc85395f24dbf55b1e84754b0d353a784706b697a72658f0724b56cb03fbf54faddbe0354698e107e86973893dfe3294556c11c",
"signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
"userId": "618242981"
}
}