{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "140293",
    "entityType": "User",
    "nonce": "0xb70b41f8a8927ce68b81c9ebfb20161f09401bcf1fce4929936556dc5364a607",
    "signature": "0x5dde0b393b81e0c5d4683e8e4ef745109d0f4cb92b7bb6808f8e17d5aea1aa43471d65e8c64945ff02c40d1a440a9a4ed6773b197913705946c881327ac7b50e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}