{
  "manageEntity": {
    "action": "Save",
    "entityId": "1081044148",
    "entityType": "Track",
    "nonce": "0x78602c0bb7f968ef72e25d486d529ed256944639afb8468165522793da1c875d",
    "signature": "0x23a00ea773f58c4035993a4e4658c42bf71a78500d281b0b822516dcff16202b4794daa789ea0deb024ee438f2f36fbe840e83c6b9404321e5ae681bf16256051b",
    "signer": "0x8dE618Aa8371041f23D771609990F5D2Ee1aDFDB",
    "userId": "688960593"
  }
}