{
  "manageEntity": {
    "action": "Save",
    "entityId": "1279195426",
    "entityType": "Track",
    "nonce": "0x7782c1d6e9d0a31e1597ba9d04a5899a3dcc0c8d5db91e7ec534d5a995b41fb0",
    "signature": "0xe2eaf8e6797c3b739559987737cb0f823ecfb5b8b4d58ef22527fd6f916dfdb056b50744a18934da1e2c88959ac52461767d4ba4324204e0a2888e9c82809fc11b",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}