{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "477934274",
    "entityType": "User",
    "nonce": "0x89b986a59fce904923cc3edeeb457cbe6d45ff638833d5c95ce024a480518118",
    "signature": "0xd3fe8ffb0aa18353139c1b429988e5c15dd09e26a1776c4903d7ef27d4df6c3e0931e558db046e195481d0ebe023c3e411fa71fe8e278c11febdc881678452a61c",
    "signer": "0xe309B4910De68C7B1DcF8A12b8F7603E6cF8576A",
    "userId": "354814803"
  }
}