{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "302628",
    "entityType": "User",
    "nonce": "0x08adaa6443d8bd7845a48f7f209ffe0357f28ccccf8226a301b511446796d172",
    "signature": "0x9e252227568e1dde934381308bf050762f72ebd5769886af294b9eb8bcd57a183447848188b617d5cca5eb769d283c520f5a0cf4ff0eacc831ce856d04c7ceca1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}