{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "806873848",
    "entityType": "User",
    "nonce": "0x9e0c3ffd399b9a72c8da0515dfceb620d9eeee6ab5de586461867c5f3316c849",
    "signature": "0x50fb13b92f241130e486059b33bac4278b22f160a56a47c87890f44c0c222552220816aeaa4208be88f6647bbea7954db6660bbf89ac87415d03888ffb43828b1c",
    "signer": "0x66897996b38D5FBFfa383eD077e429C63B8AD506",
    "userId": "904230991"
  }
}