{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x67ad4403868948eb1165d8e76c6088686fa5d19fc3fbad6c75677f7e371a1d08",
    "signature": "0x24dbb3a7bd034c62d36f1f0a8f3d0118d7e56ab55c955420e5c6ff1df2c9280c6d081de8f43882fc562f34ee2014de290458149b7cde08101b5d7bbb02f203971b",
    "signer": "0xCDCBdE95f39689e99F73Adc171Ce9f2B3f9cDf8E",
    "userId": "378108111"
  }
}