{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x55e8123f01718537c63a0347c52d5d5a637f5fb9a1ef810e887a7bd0154b1a95",
    "signature": "0x6aa211f86c024b9d74abb0301ef031568016c9b96f4f0ea45630b6d951f26c9d1c4622b6701f521353fafe33f36f498ed9d3da3bb730f15c0ff16f7a6d5903011c",
    "signer": "0x2D77AD15826295E724e821675BFeb14ae5f205c6",
    "userId": "328090150"
  }
}