{
  "manageEntity": {
    "action": "Save",
    "entityId": "36048",
    "entityType": "Track",
    "nonce": "0xc5818d151eb4d0fcc14cc0afe79bbdd7f6e7c0a82ca3279c7fceea0096284ea0",
    "signature": "0x52b11b97b38ff5dd4beb47e3f402fe435db493c7d45b631a7c2afc7c2055a99064941c7456ac80c6ad236ed179edb586e7affed24dd14a819b37834bd1a0a8b91b",
    "signer": "0x43dA66b40816c8fb9e2B0AA77E0643192169AF14",
    "userId": "636236864"
  }
}