{
"manageEntity": {
"action": "Save",
"entityId": "53374814",
"entityType": "Track",
"nonce": "1794073008580391891",
"signature": "0xc0fb71cf9eced2dfa16b08b449dcfd9a7a62233e3f27f36c19ea756a86849398352f6cf9cf4660f043e3cef119b4cf24e592f9edd7291f35076fe0c8acd465dc1b",
"signer": "0x6C9fab22A01aE163A8DAE1BB750B02A43769d979",
"userId": "153776336"
}
}