{
  "manageEntity": {
    "action": "Save",
    "entityId": "1714457053",
    "entityType": "Track",
    "nonce": "0xa606ed4f5f39dc15366ead0c5f3df067988950830e181d617cd6e1e5e83f604b",
    "signature": "0xceacb0711ce5d8652c001132b95e1740f37d9ae59ef3cbd38185cef0787102df4a7fd5368ebde8e747e1838312762dbde213fb2a8222b16e0434cb5c164a37591b",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}