{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40128",
    "entityType": "User",
    "nonce": "0x0b23446678e9bd78b0ea7c41f18b5cf96dc712251132c785bcd919c77adb5367",
    "signature": "0xa76cd7a56a5dfa04d3b1431768a5891b0bb30783912039d65452b854b4a1eaf4357e4273a1b057a602da417bb924aefdc65f123641898c2d9ebd2c7dc3f4e3281c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}