{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "35455",
    "entityType": "User",
    "nonce": "0x9fe3598b2decc7844612b503d0cf3ebc6c533735e87c545784ad7590aa75f341",
    "signature": "0x8423cc83f7969244ee24a1eb239ea08901ddf271a6bb4295369188c117c333f83d1d905fd20213761254dbf19dc98036e133a8b31a30ff2115ab04cd37b2381d1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}