{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "959246781",
    "entityType": "User",
    "nonce": "0x6fe78954d408698922f11b3a5d32dca22142e34e324ff56536b6623292cdc4ce",
    "signature": "0x823c670548fd9927b3343311a0305cee8f9d0d6538d00a8d591274fb0da8dbae4a58a5d99d62389bbd1dfdf691542cb9c9a791e7a3af376e48bbcc84ab0f97df1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}