{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "545720",
    "entityType": "User",
    "nonce": "0x1396ea73b78e08fad2cf8d80ee4b39259cf3bbaade84dd2ce6090e71c140544e",
    "signature": "0x4cf6ddfc19fa8abb10920a18ed7da4634db4fc188b901c7c53477ed4e73b03366c706c8440fb4fc0ed6057c2a41a26c4079ee3f944c4df57f410077eca45bd1b1c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}