{
  "manageEntity": {
    "action": "Save",
    "entityId": "1632725371",
    "entityType": "Track",
    "nonce": "0xf96350eb29849f1a0916c8e62045a4e899717188af23b0ddc9599bea2bee5795",
    "signature": "0x3cd2541c98e2fae0d0d112032650d81ca31ce18f9acb7f1f52bd901713bc39452e192c2288badabc3610b6b5494d0f92c505f52037c79c57bdd823c8868523ac1b",
    "signer": "0xbbB98413eB671bb0000F0b18A2A7Cae9631043E1",
    "userId": "98311147"
  }
}