{
  "manageEntity": {
    "action": "Save",
    "entityId": "1113530093",
    "entityType": "Track",
    "nonce": "0xb7b738be6562c5d156908b1571d228e9b01d43d910cc0d84b0ab3050392e176a",
    "signature": "0x22499f703b05e9886bb7d9315392a679f96bf3539876dc033b57bcef755abcef67573e401baa5d601f49e5066a8b7ea0465deabed3ecc08d2123fbc24382370c1c",
    "signer": "0x0fe82f565AaE260D57b8e691c61Fb05fE83B6F81",
    "userId": "614212580"
  }
}