{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "44615",
    "entityType": "User",
    "nonce": "0xdd3412ccf17d46e29e918a29b4aabb45dc28fbc4d6ea74e8c05454409adce999",
    "signature": "0x590ad5f918ec719bf6b197fb60ba6da7bd8fd05577bd488cbffbfb6662362b730668d7896db80cad859368be42728372c01ccc6297683489ea32d9837a57aeb11c",
    "signer": "0x793bbEFbb3Cf1e6529B90296e502145aCcCDE8d6",
    "userId": "838777725"
  }
}