{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1780850",
    "entityType": "User",
    "nonce": "0xfae78147b4bb48feb2d9b83c6132c9a1b087eeebd1e708127c923ec9c6eed636",
    "signature": "0xe5f6da5d7eb61764284812dd906b22ea1aa4ed82ec2f1e0cc2730f5dad91ad3113aa807d5c410ee5186715c665121d184b9274bf284f41d8e08a4f9f69c88f931c",
    "signer": "0x204E506f1D5498d2CABD41d2fc7a3078d5792835",
    "userId": "768479471"
  }
}