{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "224685891",
    "entityType": "User",
    "nonce": "0xf5a92ff71d96c8479b74c532d88ccdc4709add22d39b636e5157e0f246dc6641",
    "signature": "0x47591ddd3af0a030ccf9cb9695f96bc1b537373757a0cf2bc0f0737c3e7df9bb7acc2bb940ff1b5c101361ed43513e37958ce2949147a4d23b62ace1e4517f401b",
    "signer": "0x5D012C880480A2E1ab4345f6F374CFf73e040331",
    "userId": "10449019"
  }
}