{
  "manageEntity": {
    "action": "Save",
    "entityId": "62996",
    "entityType": "Track",
    "nonce": "0x47498f269abdf3577c3860f28345902e5d564ec3ccb59ee112a73cea6411a426",
    "signature": "0x6df599c4ba116bb009d74bbf6484c85715d0c8c8c1d424bec2cf3ba41a5a8abc73025211b74882cbe6ca291f477850bc05220f89b0a8941dd0f256f9554dfcf61b",
    "signer": "0x2BD0c2111290EB20B2843e8b1c0f25aA5cd52a6f",
    "userId": "618242981"
  }
}