{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "216278113",
    "entityType": "User",
    "nonce": "0x9698a1b00ca34b7c1117697146b7f3f668e81461c580a404fef7aa137be91bd8",
    "signature": "0xf6868a54eb3b73938f603a801856890df03ace3c2ddce9a74ca7019e01585b0b31f1ba6c4b62ee344a366568398773a4c69572b6c338b9f235c08c5d6f77ae131b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}