{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "65002",
    "entityType": "User",
    "nonce": "0x995ee1de33dce90781851c50f0eaa547620df60656863e6c1389b2bcdf0bdec1",
    "signature": "0x613509efc8a4d5a32c21a3b259c7341d773dca9041c724cfa3fbe4faa2dabab7674d8326e92e7bad88b4dbbd42f82b30ec1ee3a3ecde9cde7d592292ada0c5721c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}