{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "222540",
    "entityType": "User",
    "nonce": "0x1eafbf5c15431bbb103a600b815f859eea862334ec1faba0ada529072f182ac5",
    "signature": "0x8ceb057175c5665664d5fe9043eafa17cf01bd5d6af902f157cae10469fe1d7e169077a2700e6d77cabd83ab61775b2612c5d72ec487c71fb2a5e5ed613a3b131b",
    "signer": "0xA5fFfA5b8673Fb93490E3F9B0BeE58e1f0Ce1231",
    "userId": "508186998"
  }
}