{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "52412",
    "entityType": "User",
    "nonce": "0xdec9cffdeabb77ce187411997d2c6ff3224f9ebca4ecfd7f7c850849a8842a44",
    "signature": "0x1c2b8491439cd4a547a99f7d5bdc809ad7392220f37a4426ff1463f91250f32c2a80f9cabaf1273bed17d5649b5f1d309f845b7a103906ca8038884bee947e791c",
    "signer": "0xD7Db519a2A03374B0548c02822bE88402aef1E5b",
    "userId": "715241773"
  }
}