{
"manageEntity": {
"action": "Save",
"entityId": "1086652755",
"entityType": "Track",
"nonce": "0x97e1b7880ba7c5086c8bd9b33f82c926590877db589871d07ca03e3a05320a5e",
"signature": "0x5e9e64c2844c866a8c3887ea3d9d2ffd9fc5faa719b340ef8d7468dfbc5ef1514917b2759a412d52bf0496d09c2cf6ca30dcec4aabfc63ed4c94ea1af2d674721b",
"signer": "0x7E7b9c4DAC3F284d889a5bc274eA80b8BA5F63ee",
"userId": "670307808"
}
}