{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x1169c6112c944e56fd7fbb3a30f9669cd020b12c7be767b7ad89f6b77ee09ef6",
    "signature": "0x1e5debe210a45870d92baf64b24d53c74e46550fd8c33f5e4e75ead9087889cb777ffa0b3ebe60f0a9c01d1b9ac669fb496d443a4ff2b30049f829b65eb703231b",
    "signer": "0x3a6d9Afe6CDd1C057eD5C1A8d504E6F956675D35",
    "userId": "820705315"
  }
}