{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "884579524",
    "entityType": "User",
    "nonce": "0x08ba58af2f431004bc59a8da0f4ceaa415f4a209bd9c2884b47e610516b7de25",
    "signature": "0x22dcb7298a17b74c4b4994288a7dd3474dd97f05d21445394e9edf7cc69fff4a47ceb183fc057e60a2cd7b67aad2e02493ecd92e9c442a48c0eade2c7ccd27ba1c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}