{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xdf361f4b0ccc821aa9156456f78528d3d32c0a35611a1ed955f372f7786258ce",
    "signature": "0x532de42e649dd21137d089f83947a554c0ee3ba792d36a7a5a3071b26f4a08a51dbf1e9ed8158870bb33f6230851b95fd4204726d7dc2325b364b3b99abd67961c",
    "signer": "0x86eAf47d5f971A41E77E8E60f25E321E25451104",
    "userId": "907403350"
  }
}