{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "772732",
    "entityType": "User",
    "nonce": "0x55509ba270bad7663a5c99c496306ea7a2b5519f161a1976262b47c972012ad1",
    "signature": "0x94162e960c05fc24808fef8cb3e8f17ca5205bfc4648024147fd48c708e8ea5a2c01b4d415156f650a16da09da422aec8ac99de2c080dc43f797edf9f6dd7bb91c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}