{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "156881",
    "entityType": "User",
    "nonce": "0x3fa0d910144d4908ff3720cb5f5a2a77f37ceade71dc474fa0cee048b932c02a",
    "signature": "0x3068feca8c4d3389cb0d0869f5f55b7a60ab65d25f67a748f62972c43d8dee8f002060721af7899a39d954057e7cd4a93dfbc35131203768a583302cf2ed40071b",
    "signer": "0xd85E4A094e4C057572A9D525C9737051A17ab609",
    "userId": "696716320"
  }
}