{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "309080",
    "entityType": "User",
    "nonce": "0x8a85232e82695df254aa8d850e8ec07e82d37e68a0c9cd475d8dadbbafa9b8c1",
    "signature": "0x9997f7f1dbdc38157095d23f8dca7ae0eec8b34183cc7c5f8b210aa00aef63cb709b96fa6dffc844292ce5d6fc628e03c8955cf7cfd6340e438854bd21bfe0471b",
    "signer": "0x375963f281CEdF4D9D180496F80A256D574daBa2",
    "userId": "981824750"
  }
}