{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x3e7eeb7bc585e56ddf37f5efe2a0576aac49f4adf92d669a49127d723886846b",
    "signature": "0x767e41b7364d16023ca20841570fd20819b4be07ceb36719944a9eae85c042411dd99b32354a3f7fca1f75e114238daec5c3f1e8580d000a2f6c39b1eabddbe81c",
    "signer": "0x4142F178fc27c3DC53f1012e505fBB8Af788a26d",
    "userId": "802455146"
  }
}