{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "614212580",
    "entityType": "User",
    "nonce": "0xf0abb2e08b8b28781a623f794bca5374de490428f18e368f376e4679efcccd0f",
    "signature": "0xba6da152648d28853e5780793419899b8d3f83e0533209bb8422d905b23d715218963b138e10eedffb7bc8fc7bfa4fa88f3bcd1d89bb6ddb4e1d49499ed269181c",
    "signer": "0xa1F606584fdE30bB7d4BE2EbeC98A5F95E4559f4",
    "userId": "786922215"
  }
}