{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870782458",
    "entityType": "User",
    "nonce": "0xcfd3203b69fea6451c97f8674ec5217b25694a126ca8abb60e7daa352a769056",
    "signature": "0x845326705092fe16f837b64d89c4594c51ed0d9943dbf9654b00874e354fe9013065e1d6d7a8aa2c2d7febc2226b921b512875221dcc6c18a8b6e53cf3987e3f1c",
    "signer": "0x1ABf6DD41fe1E6b1C2d3A69859a25C92caa31b32",
    "userId": "17689"
  }
}