{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "697022440",
    "entityType": "User",
    "nonce": "0xe77a6539df5e276b5c960daf89a54203df273b85d47aafa2cceb0615eb2fd282",
    "signature": "0xf1b792693a3bc9de3ab45ebb47c59a171ee1825923a363ed8eade01ed4057b1945e680902e3ff3e12d854ce88aa2e7f92cc4547ca900512215d9d40d5219412a1c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}