{
  "manageEntity": {
    "action": "Save",
    "entityId": "2056217989",
    "entityType": "Track",
    "nonce": "0x52090f686f38ccfa7d9cb7712c6d7d89d81d10a250bc493ad0f926f1443591ac",
    "signature": "0x0f4e06a984642e8564188734a2e4e2a36afae49f083fb09589240261084eba806db5c358926ae4d1a40ba14c2732ecf6f5367e26f1109dec0433dccf76a4d7d41c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}