{
  "manageEntity": {
    "action": "Save",
    "entityId": "79300601",
    "entityType": "Track",
    "nonce": "0x927a1dd70a3af8db872f6f8d7dff0843fc976628d3b046d09b91d575c9cb254d",
    "signature": "0x7d1de823b9b0ec75ab3b7c1aaea8dfc27b726e4c9a09ec84d878c327946a4b13115cf27e99d161dd1e2599c7af947eb62663c2c930e03405e9641fd611142f201c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}