{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "120502",
    "entityType": "User",
    "nonce": "0xecc83dcf0ef50d61199bf133995a33e009f50b51558f5d8e615014305e0dc79d",
    "signature": "0x0677b22ec92ff4c42050f0621fb62ae74cbb179f4a547fc65f03fe5861ecd1580fd32299d14b0f45a62f3893b9f962a2df71cb19db365b0562bbc07a6e6b04c91b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}