{
  "manageEntity": {
    "action": "Save",
    "entityId": "1334155995",
    "entityType": "Track",
    "nonce": "0xc39f4b74e9ce4452cc7d72ac536358bb5731567159ff00f660b87457663faaa5",
    "signature": "0x7b1a4923c563ec2236fd0613a40c267bc2b0a7aeec05c1d09ff8d244112f499558b4048682ba60fea9e3ab4094bed2b0b62eb85c49389af1c212bdd5ffcaac641c",
    "signer": "0x036B1ee0d2003ae5B5E252d58647d13f0e588EEB",
    "userId": "161353174"
  }
}