{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "159467",
    "entityType": "User",
    "nonce": "0x977fbdeca2299e2a376e460bdd68bbc9a9be8bf267189f781c931efaf1b85461",
    "signature": "0x26e1a403e8458f01b26895e07fb3c409163dc0ab9a3d2042a7fde6b74ae74f52697b6d561d0f7eb57d4ba9db746bab2ac4f7c850d1e48771d022db2821c5d03d1b",
    "signer": "0xE68B644418C49102f3baFE7007482B0DB0df6F74",
    "userId": "749228874"
  }
}