{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "593684426",
    "entityType": "User",
    "nonce": "0x8ac90964f1a239ef8a0ce88085fbd71daeab4fb3532492b072d28898433279a7",
    "signature": "0xfe502c304d314c287d976293f1932f666942746061da4849f81c24f50a2ed44a5ca209ebc7e8351faf84d675c86f1a044cbce0f3b637a0f4559d348c11245de11c",
    "signer": "0x849b8180f084363b37768C823c174C9786020A66",
    "userId": "817339612"
  }
}