{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "427798224",
    "entityType": "User",
    "nonce": "0x5f2026b8d65794c209d6173d3ee6f44dfbf53c45378f23ac47b6fa866696c5ac",
    "signature": "0xef3290e37424b2d84909bce80067bd8c13b232685116721ec9815720d420deab19bcaf49667290aaec118db173c9cce39bd9da9a987b4e676835a4273c5b8b0e1c",
    "signer": "0xa2DaB1ebF6D10325b0948C994b592F7abB2Df44C",
    "userId": "728570067"
  }
}