{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "500805192",
    "entityType": "User",
    "nonce": "0x07c48d90c2c311304517a6688e832ed4a3093f804d52b6bfd5777f315c84c8dc",
    "signature": "0xda06530a011716c14011c6f895fa607d5f81221213fcbe3a2dd47f06913c01252e55094785b1fec9a2b0a672c1c8501a08b190c9eddf14242bfe5c662947bb441c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}