{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xd1d6479ec8f9a5163209243f5ee9f41597efe89f6f215bf74daae346e15fb64a",
    "signature": "0xcdbce1230174e8d878acdc15a329aa1518f510f1b304f6ce9b3a09a6fb523db71900b08c9bccab470f63a4c9fe3db78c46fbe08ea4ccd28c6a6c51b81c5d07281b",
    "signer": "0x183c84Aa2adcD721c51B1E535E6E8695d75a34F4",
    "userId": "775321776"
  }
}