{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x100cbbabc84142ff7f43c792d7827b1000210eec89d5826e9765b07c796f1bb4",
    "signature": "0x466b145c5ad1be676fccbeb5c312abfa501648c43e1549533b337e310ccce77b3fd8bf3a32850493dba7ff51bef98fe25eb4b13c7d6b3cb2ccd1fb6600ea2e5e1b",
    "signer": "0xf7388C7b116a7d3aC8a35e3A5Ee6171b542484d8",
    "userId": "786516058"
  }
}