{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "73368",
    "entityType": "User",
    "nonce": "0x193fc96708f787ef7a95c28020e418634b476132bc1dbb489fffdf85fc664932",
    "signature": "0xdc9e2759e859618ba8326d2950e39b78997c6c3655663b2bc7e7598b6ef7bcee564d164583879602ce401231da3edf974232269db43ef370d3615f49636fb7a91b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}