{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "157492",
    "entityType": "User",
    "nonce": "0x7d408c7f0018277bb856a75c99416aab64c0fc62dad5a32e8ad557fa8a348bf3",
    "signature": "0xc2771a1bb60f20ef97f15d899832ab84394af21ba56fd2b224477630feffba385fd1bb88530afc11415fcc7d0e3147704f439ef7901569ca6e694e88dffa2cad1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}