{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "158343",
    "entityType": "User",
    "nonce": "0x323c6898a08c89be599bf7250d35b5c2df07ff9183f88540cb27525a80971d13",
    "signature": "0x70d0f9b4a4384a5d9f490df47a2be0b6147da56b6a6e5c1ffba55c7b6efd8e0474891bf86e767be99c3ea4ff21656d5bbc11ae1eb91ca4365b560dc992db4cd61c",
    "signer": "0x3256Bd2D0B1984E7df4FA525017aD9bA48470760",
    "userId": "51"
  }
}