{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "355113",
    "entityType": "User",
    "nonce": "0x1baf5351b74e4fd3dc22c63b55bb9ff41d99cee0782d497c5c62ed4ce098aa56",
    "signature": "0xc606a4173a407761393c7df2ca0fd17d7439c19176b92b2ef3ba12e010e28d0c4be7406e6e1540d99925a7758311140f5b7e952b860c4e6fba3f58c93200bd951c",
    "signer": "0xE280E847d2A686a5B17DF698d98323E53A33789a",
    "userId": "915319400"
  }
}