{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xe9bd018a3f6d84391d7e14225cbc8f91d557dd5a66d8e994b5255f196c2287cb",
    "signature": "0x14728c71f5f82563085f7a9e8e776ac4b80cc6bf90d327c67db5c44d4bae33cd2ec09be2538ff8eb0585374bbc277f113064e5a8eb3c19bc219e3f510fd5d2881c",
    "signer": "0x6fAD04D38FbC1C81E6C2007cffCa1A7520b7DCFB",
    "userId": "406552185"
  }
}