{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "143331",
    "entityType": "User",
    "nonce": "0xf18d99b957a742208757239980bad7792917e8fa6438c05b42a278f0745e5790",
    "signature": "0xefb7a07c4ce1e0bfc6cf8cc4621366af640b8ed2914d63cda9c7d2f3cbf93c0960cccbbdc02fd8d0bec71290beb432b0dc7fa732d9a53925be823cb4955d90551b",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}