{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0x4be47dc1762fe75c707a6b24d1d605e5b1e2dea16ea07b75cf800a01cedc6f5a",
    "signature": "0x0d6fbc32f58ce3b3cb428beb55345b3ea6be2df078ed2364fefcd027fe3cf7915cc355e124965d375c236ae02b3b417410065248052814f47b0e471a8ad3d4411c",
    "signer": "0x3e48DC5763519fbdE0A26db7C59929E8Bb6B8Fe2",
    "userId": "971129804"
  }
}