{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "831117417",
    "entityType": "User",
    "nonce": "0xb0c20f698c067a1fbf4e49b69aedfde9a33b7dbd0f944429fa17e9aa07248c92",
    "signature": "0x2f64b96a2d0f7dbba682324cd6326e28935c5aa8e621e93061b6e5c97be9831b3c4fc7fd6d36d5ea979f116e3efc2e1fcbb890b53acc6acf81dec5844a5ab1cf1c",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}