{
  "manageEntity": {
    "action": "Save",
    "entityId": "1716024605",
    "entityType": "Track",
    "nonce": "0x4e0fca27a3e95ad3697d84788ee4ae9dc993b21cf73dfd21b86e1f0393ed17e8",
    "signature": "0xfbdda1642b7c77e51890f9ab9ecb43c627b14001616280acc81c12a15913e7a70f59b84e8fde4d7fa3ea47ba5ce0c4c99530b825b9d3f0da0b651743e01fef811c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}