{
  "manageEntity": {
    "action": "Save",
    "entityId": "1119158834",
    "entityType": "Track",
    "nonce": "0x6dbf46dce0782743d8d86ce38ab4b9c7271ab87a6bfcac78f9bd0ba8da6f5b86",
    "signature": "0x1b078cb87cfd9307558579183d182a9349c48b93796bd9be15e2c71db54ac933010dfda1223eee463a62ddc22d8dbcee4f3c7abfef30b3f03d8da227fbd413771c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}