{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0xf6058b2202525e683ec6511e6842f98e2e106b0994c1781e04b6e14d2b7ed7ac",
    "signature": "0xdcdb9efeddb7bdb2d250d2d62f790971da7c5f36f70aae48a603998ee0a5c740128bfd3a4915d110504af02a86fccefb311887311b2e0c79cf59d3ef7fa85d171c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}