{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1491076",
    "entityType": "User",
    "nonce": "0x0d5b67bb53696c0b88b038440c818db6da86779e13081baeb371892b4c140a1e",
    "signature": "0x939f02886d5e096a1ce3c6ed028402402c2074218d3a9d5eda920f07d6912bc438a171ed534a103228e618f18a57f236d5b1dbc72b18ba0c3f26e5a04dc0444b1c",
    "signer": "0x375963f281CEdF4D9D180496F80A256D574daBa2",
    "userId": "981824750"
  }
}