{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "851222014",
    "entityType": "User",
    "nonce": "0x644bacf3f9a810b1c4da875dedac3334d1eb876e05c45bc5e88447c3844b831d",
    "signature": "0xe79b4d7ad6283187fa144bd57f9f47510502643d2156c654983132af87da4bb057778b87a6c84a5d94fdd1678176e8ed27acb0a59bd059b13dd2698d0411fb2e1c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}