{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x8f21669e49c9c74e7ff2b5de0a18a35d981682791d785336f6b4b17468558457",
    "signature": "0xbd4e0ddf94e7b8c8402f0d875762f11a72a66f88d816ed1b9a70c87967ead74c02b4abeedda5690f478d7bbe72b40b53571e4993bb015076dd52091ebcdc341b1c",
    "signer": "0x7932D6c38Ff282AC205905191623EE7E7dF5eAd6",
    "userId": "38955268"
  }
}