{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "460109700",
    "entityType": "User",
    "nonce": "0x875596d81dd4e4ed34e6020c3da129c3ccc3f29925db16aba8276f1905c7099b",
    "signature": "0x34b7cc0d6b84759c75257ef4c0767a8a11eed99284cc0b88349bf393d1ac74c170684f42b4e5baa92d4fb08e69623e10e44df874bbe860d0cbfba21cb4c063d91c",
    "signer": "0x1EEEf459C8e361773166d5681a5066659BC751D5",
    "userId": "210033902"
  }
}