{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "135903",
    "entityType": "User",
    "nonce": "0x100bc4a8ce2e4b81e1f71e519b73948bc01ecfc8048b8e146053dbe364f161cb",
    "signature": "0xdd4ac09bd0693bae6a329f26ee7b645d8b70453435d523038ab2c5b644e4873807f09e4429deb119b6c1ed54a8a2c4c0540040ae1ec519bff2feb19b7df42c311c",
    "signer": "0x71d32288cAa12eFeB3233E78Dd2B45De8ad0F20c",
    "userId": "592020100"
  }
}