{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "618025803",
    "entityType": "User",
    "nonce": "0x86909cbcb749299b3999b6091d9fdc8e01f2f4af7c1ffc4fe9dd960119fae6a9",
    "signature": "0x2a5c864d61fc1d497e80bbae134d08acbc202fe76bf22e6910d36f5246a1057018dcf47fd5ad8454c3465ecf8f90458cda13cb5bdcf191e01149ec838a04518d1c",
    "signer": "0xca7c61d7Db568b81B8A952B917F45dd863B736F1",
    "userId": "144109"
  }
}