{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x85fdd6728c402417ac6af31f75f922ce8a4997b93405c8b8ac49a91a97c58301",
    "signature": "0x15ed74649f7102ed99e81fcf3babaca06b08ec23cdee1695a43212f5183c161b3fa47d2de5d73a727966e6db96c29de73c710e4b8c12840f95964d2e6649d46b1c",
    "signer": "0x6bdeB16A0EEfc2a621Ab08bF415568Ca273a4A53",
    "userId": "408182788"
  }
}