{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xda7e5a5184923652a6cb81cf9dafb8c644499adf3c7aad868149b6c69607f8aa",
    "signature": "0xa5658ea8a2e665ca7375102727852d613991a019089e0ebd13e5f8bc8a6ee8ce6d00f8be22a2e04963645fb68416d4ee2c2636cc11b44b58fa71e8d43d7b1f671b",
    "signer": "0x136A4e19270387bc21d7e58a9592D46864B0Ad57",
    "userId": "956002390"
  }
}