{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "444878",
    "entityType": "User",
    "nonce": "0xa07400782fbd1a9b52b9d2a37657cc3533b8f7f15c633c647a2406d829926741",
    "signature": "0xc5c7aaec53037f7ad1206c08b33853635c11c08e7d5f25dad4790b0df005c7fb6bf8355d047823180600e0830cca0464b7f5215da9733c3deed5fc55d6057f011c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}