{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "581175455",
    "entityType": "User",
    "nonce": "0x29bd4d7206d5c26e9627ea61e91c40d430f6c11e3e79a0f77f93dd9ab5e21592",
    "signature": "0x433ce105489250704c06de4fa6c06cd55c49aa8f2a3b7e6d777c32a78be586d02dfa9c417247b48acd6bd68f6aa6a3018cc472ae2cad6b966520d4bd3929657b1b",
    "signer": "0xb0bc7585AC84F169814851A3C22d8d92D133337F",
    "userId": "267657235"
  }
}