{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "356294",
    "entityType": "User",
    "nonce": "0x870d7ae8df1138b505224cd507ff7b3eaa9d032ea5cbdaf4b0e1230e185f485f",
    "signature": "0xe2b6840da99119df16135f42d7b2ab281fd37572dbb56192ed966061427c43b053e4bb6e6f2ccb831e42568f54c3b2d52a1f7daaaa0ec10fd500dad5f54aced31c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}