{
  "manageEntity": {
    "action": "Save",
    "entityId": "223082",
    "entityType": "Track",
    "nonce": "0xbd519725a202faa3f418eab5099a544ec079b60dbdb13cff829707b4a0a570be",
    "signature": "0x996985ac4fe794a13db8605fa2677eed8ef5e482a7c0f5be343cd7a8760d762254566e5e81ee2100b504af4e28c663d97d8b50a836292da896613acb0c865e001b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}