{
  "manageEntity": {
    "action": "Save",
    "entityId": "182163",
    "entityType": "Track",
    "nonce": "0xc3fd0228b41290d5274457f619e389e6ed236a4b451c83cafd63e3673441d516",
    "signature": "0x1b1643b112059ed9245bb3b64c664785c37ca9c17e1e61de7f2294098b812654431295deb43eca5c2357ac7e67bc0b57b881515c803a6d778ace8b79abba16c81c",
    "signer": "0x73317E9D44b6E1b7d146760b12dc5546Cd140ED2",
    "userId": "683609933"
  }
}