{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "381571423",
    "entityType": "User",
    "nonce": "0x748295212cf52394e8c435309130b7b5d5be15f505e37bede5cf12a0471e0a57",
    "signature": "0xa96b3bad6b5f913584acc2058eb551aa0de7d058d4b30f13c5479b8c87282ed6567ac9fec5fd43a3d36418c8c936155785cac2025b60231a373ef46f26a5d6801b",
    "signer": "0x926F8d71a7109CF6Cce00DA74e1BcF50aAf63E8b",
    "userId": "358546053"
  }
}