{
  "manageEntity": {
    "action": "Save",
    "entityId": "833317577",
    "entityType": "Track",
    "nonce": "0xf95086d67f65099e607c5a2fc4569c7b44271cece50fa098bb6e065ff23a9c97",
    "signature": "0xec3e6ff855beb791bee2d8472c770c1045a5885190dee6b60f4ed08b83bad37839e376adc0fd44db4ccd52988949de2c05e57774595149de5eb3f67ccf1689351b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}