{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "814131574",
    "entityType": "User",
    "nonce": "0x8c578899faed7e909f38c50187dc77b9cb272922c096dbcfb123daaa6fe35ffe",
    "signature": "0x2bbe7090f52136ba320cc88ab1e874568ca960627e448565891129072f675136545717efee2eabfa749cace1d62017ff906094fc42f8c4d3d991fa00144013ab1c",
    "signer": "0x213e76eec8A174B843151F52cBbF25b5E9fbDBf9",
    "userId": "586073714"
  }
}