{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "151004",
    "entityType": "User",
    "nonce": "0xc38773c25c72145ce2f8afe126316a9af21908418bcc7889f2433a60c4952caf",
    "signature": "0xc5151b5e625b60eea804bb3b08c46cf4c965e7b9da7e8e75b85ec102ced4e6075194273541596a9e46e4988bbd835e36680199d3b4a5c6b4f3d13ecc7083f5c61b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}