{
  "manageEntity": {
    "action": "Save",
    "entityId": "317344",
    "entityType": "Track",
    "nonce": "0xaf2672cbfd685e7605c522849f995e35c5d5d8e16ffe0a0820977271ac5a40f5",
    "signature": "0x073c06d88258b29c88977fb4fdf6c79aa2d27b9f4ac9a0558e3562fdf64c2f580f55a6495b30bae95a94629b6f23ecf97984bf756de19d91d3e04147bae505811c",
    "signer": "0xe5223Dc6E411A24e22DcF917955e97a8D7479d0c",
    "userId": "981716494"
  }
}