{
  "manageEntity": {
    "action": "Save",
    "entityId": "1230758276",
    "entityType": "Track",
    "nonce": "0xfbc4928a0cbe23511f20c44a7abb96b799974332ee4a5aa215f5ca9347109e43",
    "signature": "0x9f5ab25aedaff9f576f4b2ba2b0fbc4e3caa9122ee870462bdfc28af98518aca0a1be0f5564fabf4d9f8038deededf18c122e27808542d1ce84869923a0a7ac11c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}