{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381673",
    "entityType": "User",
    "nonce": "0xbd891fc46fce758df1765af947496cea07af4ad77e7ca6d5e269968092c2af72",
    "signature": "0xb721e18f2b8d20b304f0b3f0d6e1509dc42c071688bfee6dd2df8dc64f90af391e0946a3cb8907e4ae2328a4d263ff186d30ff5e2c498510b261af13949097801c",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}