{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1646095",
    "entityType": "User",
    "nonce": "0x8dba0dd0b52dea7a0c3469e9e352a706fd031f548c6034a204ccb6d8568d2099",
    "signature": "0x2f67d4c90c3c012a93bcb5f3db8c2f588aa34879e06607750278eb00312bdeb411485055884b79f80ed644945d28babd57a754842afd9732bdc6cc5a3a20d3971c",
    "signer": "0x40E8E224E8F8a9f835e4dc8851Da72DCEd75986F",
    "userId": "504092010"
  }
}