{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "162743",
    "entityType": "User",
    "nonce": "0xfc9b668f9fa9cc1a65190991d409d674672ac4fe23678a873eabebee73dcb837",
    "signature": "0x5d1ef7411f3640f9681d062cd75e7ef3eab8adbce9b0a6f606b0119b10f80fb63fa1f9b9f42fb96ce436c5d28189798d53d8e11aef0d2fdeb1ab7dc9e4fe6a461c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}