{
  "manageEntity": {
    "action": "Save",
    "entityId": "736261808",
    "entityType": "Track",
    "nonce": "0xd14daf2fa464b134f527f68efb1a42230070f3c2a2602f448590735a3ca93c94",
    "signature": "0x81cdf0a32f1c41b8d8444b89dd156944310dc7080855e7406686d8cf89f83d4e08c39cd637c9e76df36f414a5ca1a91c7b3d2a0547de09b98d748120a09eebe51b",
    "signer": "0x3324C23609BC25902C39CFa38CF40581c7Bc7F87",
    "userId": "229134011"
  }
}