{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "496554695",
    "entityType": "User",
    "nonce": "0xcb0a3cb95a444a333418de8959f1ba0f1ddb5816b7ac47cae02ce42b47c51abb",
    "signature": "0x7d67a6e239a3fff94b0810468b0d7040fed8b4d215a4cf68f23c72c958ec29250b7366b7a2823dabe696e4573d55cd9bc38a5b3e561bd58284c921fbf5d16ee31b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}