{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "394450",
    "entityType": "User",
    "nonce": "0x31f1a475418f8416dc0053cb08bcda4626f0002a4f3059108c8d80a084fd86d7",
    "signature": "0xcfb14199910a25a76a2836d28acf9eac7b641cf70650a2545f39fe1dd2c60cf3588b6f36168a89b08a2a18d263640dad370ecef36bba2061ff94c6e7a44d59b21c",
    "signer": "0x1cad9Dc848B4917d921Bfd79491256e029A5FeDd",
    "userId": "468495839"
  }
}