{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12691",
    "entityType": "User",
    "nonce": "0x1e468d3e597a976a7f26aa22efa25edee8c5b1373d1142128a24540b7bfea613",
    "signature": "0xe04cb316a19dc3c5fe197a20414ad464b2ecd24b2a48e04c6a58543f3d844e747bec278acd1f5c278bb8926a233897a2884b67114611bc52a7795af385f254f51c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}