{
  "manageEntity": {
    "action": "Save",
    "entityId": "1095275748",
    "entityType": "Track",
    "nonce": "0x59b6c13a94cc4f7320063a25c2b7f1ecf4353f2e67ed4306ff0fbe3c8ca74776",
    "signature": "0xb8e205b38169005f3a224ef5d1cfdf9a86c8ec7b1481368bc4c3083fa1c9629d14bcd7a8043e68b5ed010ab7f58a463f0fcdc33d2aab131c0b5470791c5e87031b",
    "signer": "0xce8922BCeB6356Bcf772BCb592290B731c4Dbf32",
    "userId": "322981683"
  }
}