{
  "manageEntity": {
    "action": "Save",
    "entityId": "35006922",
    "entityType": "Track",
    "nonce": "0x9dfd6379eb375ffa0b45a947204e014bc9806980c2bc1d81b5c10a44a682c845",
    "signature": "0x04689905356be5dd5bdb66a82d22a3fb62b0bbbcc09b953932b3344ae0a080b734f138db15fe7df99e00411febfdb4f080871bd0606821cbe9d85ebdb2d3a27e1b",
    "signer": "0x1d868e2cc29848871636BdCF83a08A975835b6DD",
    "userId": "120328011"
  }
}