{
  "manageEntity": {
    "action": "Save",
    "entityId": "1282238934",
    "entityType": "Track",
    "nonce": "0xe23652bb01861bee15b3482742d4dd4b7276c56bb7bbfce24eb87a4acb3fc836",
    "signature": "0xc690207d31e044bde92f55c3261573ee99e3170531e475a23341b186e884d415158d4fb8529cde40593a6f925c8041709347519b73f845b5114d35589c14ab761b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}