{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x4258697eeeb0bac61e9dc0c99b675d61d8953f28704271ea200b945720329f01",
    "signature": "0x72f230dd271f6c28af94d313c178aeb9f7b3a8766b26f43631aa0cbf3a11b2743175cd7727b2ae29ec1419841fa0fd0afe9de0fbd58749d28552eeb695cdde8d1c",
    "signer": "0x809Db232a6131f46553BA571FB17bFA2cc58aeE9",
    "userId": "351386054"
  }
}