{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "592765211",
    "entityType": "User",
    "nonce": "0x0d369862b85903bfc8408a25db30bcc66d4e764f00f78b74662a4724e84831d1",
    "signature": "0x4f3c8e926d3ef90e85faea031ba7d533548ad6bb2a9e0c1275cef72c723ec6367262062ee3a6937ab6c9d75131ad0c6cdd7bda933ddf6fec98c97a9d818430a91c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}