{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1019",
    "entityType": "User",
    "nonce": "0x641c0938730098a6e8ee882bf05668fdbf9bb3598185fb9395c13586e27ae736",
    "signature": "0x553b2b2cb5e67809b6a2a0eb0470cc5e1aacaf82d182fbd8453f703f90451cd814575f56e27df1d7b2b3971f353e7590b74448a33de1c7032fcbae5f01bd150f1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}