{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4720",
    "entityType": "User",
    "nonce": "0x35eaf27076f6567be283ba14711981382f8d76437527984f445f2a604ba7953c",
    "signature": "0x69ed569db08a064dda6bb54d0f2f3181dfeb56da07db8f95f7e44c538052c6146ca54272a39ec4a7752b855ad275dbf2dc8c7b818dc46609f6311cca3bd844121b",
    "signer": "0x243f92B83d056f818b9b95664A8B7A86805A3E71",
    "userId": "111448"
  }
}