{
  "manageEntity": {
    "action": "Save",
    "entityId": "1160673327",
    "entityType": "Track",
    "nonce": "0x6c78fdc7dae872db1b2b7cddd33afbf94262291667ab520be8950d6add30b223",
    "signature": "0x3c50a9526a1bdd4cf59bf314ea7b75fc205d92e9ed90cc78a757077f2d0d5102176162d20182edd951c8a0694c84e36e6ade9e259c362f114f6110678edaf2901b",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}