{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x73ec1c339767e146fae12d6e6f744cff5b04a0262de4f4a39682a0aef8024588",
    "signature": "0x5c77a6fdd2e3e7fd113463818de21d4d8e9140d9cc1e0d9d6b535f553569a4175b6f63a69dd224f29db2f5e289edb8974c1ad68da51f722405709f7958b4c3141c",
    "signer": "0x18cb7436d75dc17251E18a4A58451F227FBD800f",
    "userId": "460533913"
  }
}