{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "38875",
    "entityType": "User",
    "nonce": "0xf543fded0e6c511feaf898daa35b187533dab8bd1691f4df395f6968c35ff0e9",
    "signature": "0x09241d3d25517019b968fe6e203651065b4477c775ad27c734d06cb8179a067e7348170e8c4b5909b183a9c9e62ea201474d544a305b3698c5be96577e39edd11b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}