{
  "manageEntity": {
    "action": "Save",
    "entityId": "1128201073",
    "entityType": "Track",
    "nonce": "0x38655e3c730fad6554137a0686a940c953dc8c66528b25f23869f8787f61a86a",
    "signature": "0xffa9d1a4c2f35b184cb8edff7cf36040fa5da7ad1ffda71742ebccc0226f6896519478626c95047f53ae40023670640ce5695f3e22c6ca3e4bc9b909ddaff1ef1c",
    "signer": "0x5fa60F185681545769de01098bB8F29cfbaE3cF0",
    "userId": "489026160"
  }
}