{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "318759",
    "entityType": "User",
    "nonce": "0x4c3f46039935ac396d0310b0dc8128fd058091d4b24efc61f5556bc7cc33a173",
    "signature": "0x473b2cdf56b1afdabd67948d7114b902144c82ea6a0a1ff21b17e19ed252895c0c58a7e1adafbb858a4c2f6682d7ce208a52b77fd6de932255a7e389d0a488dd1b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}