{
  "manageEntity": {
    "action": "Save",
    "entityId": "69329819",
    "entityType": "Track",
    "nonce": "0x0594f3be201cc827f28b40543e0bbb5049601f034259a32fd493b50a57556138",
    "signature": "0x57db3ac76cd64848d919e6485b1ce0f0fb70f5e3b36a4decd0c9c3820692a92a178014eb99e9069724131835e40553f63527eba5616d4742a326b5cf8b0503801b",
    "signer": "0x102a924C1c076Dcb5816d20E32Dcb6F00e75F2C9",
    "userId": "485987672"
  }
}