{
  "manageEntity": {
    "action": "Save",
    "entityId": "1130597252",
    "entityType": "Track",
    "nonce": "0x3d0da5b8428c7a107a62523119b997243e9841ebd60424f50c860be6eb51fc7f",
    "signature": "0x93e02beb10c58c98853243f3e2cda45c4e1656081ebb0d78e25b4d71fba792d23c857ebf378569715bddf5214b446369d866bd6b0130dd27a65059897ef496b91c",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}