{
  "manageEntity": {
    "action": "Save",
    "entityId": "1109095124",
    "entityType": "Track",
    "nonce": "0x6cec4e6fe845e0851ef54963e0bd5782ddcec52b17326f52b1dcb8f8953eff6d",
    "signature": "0x8f73e3ca61518765a20c7c59945b2aff3b269bcd04e1be1bd58868dc214ce190127c18216d29a84b080395328b247c2cfbe6331471398e6b6a8a77ab6687495b1b",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}