{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1894938",
    "entityType": "User",
    "nonce": "0x53e02ad7476e0d2702835a37c562e1c77af76072b99616c845ab2e7871ae165a",
    "signature": "0x613916c2d054f218fb59bbac0335727f1bf9daf0158468eab8c847698d59e90d3b4cdbabe9a3c7b52f6125bc7c9c56d4ec5261e76df71ef745d363b3d356980b1b",
    "signer": "0xdcAEaeb1b2DF396B02cDe67B3D030cDf38261A5B",
    "userId": "58531"
  }
}