{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "151",
    "entityType": "User",
    "nonce": "0x5cae6c4e5144e858c69abb23206057228e4bee507efcd8330dee021a73c128c9",
    "signature": "0xd54798293ca24928245321880da40519f1a43c992f321404f5d19dad04960126582caa29cf99a555b63b0d44359eca2e1f203febf58d2fbfe8fc328e2716765e1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}