{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x2df46b2833a773103547625af24ea9ebeacd422e476a601615d0a76b82d133c8",
    "signature": "0x50a7b909e17127e47b94c58f6a355d9dcf25b6cd67dc51a02ea1ee81ef8894136c8e72ce5a2f4ece44623daa88757b99e50899c411eb5c9f6fef912721ec70cb1b",
    "signer": "0xd3bE8eCC66c827e870ed8642E6e9Cc04028E015C",
    "userId": "961992981"
  }
}