{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "103994",
    "entityType": "User",
    "nonce": "0x8d78f8777ed753ed022808da234f18dabd4a9204476f3bf21285fd9b7e57c027",
    "signature": "0x5b35a5584f3c5a8b962180b5900bb8dc9f72881ed2add071cae5196d1666de461ba4ae3a4da1cac85f37156650bcf6a470eccc1cd0ac3bcca2932719c0c17a7c1b",
    "signer": "0x45c4f1dcE13eeF476C74C5758696D56137253980",
    "userId": "824478223"
  }
}