{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x4f1c86ebd3d90d4df4fa9d40cdeea42d0b455bfdd2e76010f3be0d29ab56501a",
    "signature": "0x3b7c94be2ad7732547b35ad11c5845b88d7032ff1c9da05a8ca55bf5b77110304bdc3be1555df9d74a470dd804a2bf8aff836f4b0273f95877f21ae0380c0a801c",
    "signer": "0x809Db232a6131f46553BA571FB17bFA2cc58aeE9",
    "userId": "351386054"
  }
}