{
  "manageEntity": {
    "action": "Save",
    "entityId": "1065958822",
    "entityType": "Track",
    "nonce": "0xf6eca50edbe5cb93d68c9eccaf64a55f6ff7daac8f59b047b2cb0560c699cc4f",
    "signature": "0x0fa146bae44729ea9de6db951b31d0688fc5d6ba336e1769867386c667c0703c7d979bc30171156cce16b1e639c3364d593543e6ef88d0f899c1979b3d465d911c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}