{
  "manageEntity": {
    "action": "Save",
    "entityId": "1514310371",
    "entityType": "Track",
    "nonce": "0x9a66dc26564b27f961763c43c9791fac4ac386b5c6da8b1fd4acf728a16b63e3",
    "signature": "0x1d4ab5efefbdfe2de1cb117403abef50d0fb3d9f1f0f1e8f7294e582eb41487e218178f5f2587671a179665c68327643c1eb35ccdcb43334caa361fab534ee971b",
    "signer": "0xa22176a11BF6703EFe39D488aA7cC06aa781C44A",
    "userId": "633924738"
  }
}