{
  "manageEntity": {
    "action": "Save",
    "entityId": "1360434564",
    "entityType": "Track",
    "nonce": "0xb0cebfc14f79d3a3f9a40c659eb6f14a9a27fc8843c3b73d17f897b56db66f89",
    "signature": "0x17bf1bee5569b3deba7f6a414b34274730b452c610e19e77ed22ddd4863430f64ab27b8afd5a44057973bc2680022ae47a1e36ece8a5f984595aeb6b37868abb1b",
    "signer": "0x6802Fe39C5FA9f99ac1Aa32F164982185A3E70ea",
    "userId": "152482938"
  }
}