{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb695a2562f255769183ceffa4da55f0a90199124004926a13916ff0cfa11824f",
    "signature": "0x9aa67521ef5009f62b0d26d56a6295345e31f95ffb7097f54c69f1d11933bac53d3ab59ee1211541621d79773fc04da86372010e78a8abcf4cc8fd73591336721b",
    "signer": "0x1aA16fE3e79EcFEdcD54a15543136575E741D4fE",
    "userId": "356493920"
  }
}