{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1677083",
    "entityType": "User",
    "nonce": "0xfa9038dfc00eda18d2ee150c1b88bb151fe0d354bb7b00898961099f00037c5e",
    "signature": "0x823cc308955cd8dd165d1b1899a0065acd8803d33106bc5e3f7535b4c40aa8a90501d9112c440c0c89ba8b25346352e138ff9d21fabf80cb296c2ad6fb1d28ef1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}