{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44142994",
    "entityType": "User",
    "nonce": "0x12606ff0564407e480dd7b09b6ed5a916313232cf2a7da709cd47a31e9b23f87",
    "signature": "0x940893aef323a4a710447bb7cf320840387b89e006e1ed54849e0db764b0f2cb431f4e462eb5cbb6bc208adfbd79b344600e08e87013f862f6a1c5a25a6187cc1b",
    "signer": "0xDc3E8455192174BB859F815e8840855e17449589",
    "userId": "267643931"
  }
}