{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "843258957",
    "entityType": "User",
    "nonce": "0x9cbdb177c28ca920345b800773c21402e26b166221862ac6296add465b44cce5",
    "signature": "0x7bf3f7721d3f1de735e4cd8ab6e365b2ac73c80ade191a3a77df5ccdfc101be7652df8e5d9ab9e10b453d3b4e5d7f1eb7278a77b653ed2821e56772e2a6bd8221c",
    "signer": "0xA60fcA5dDC2f63444622C371FB2dD8F2D51d9398",
    "userId": "153833032"
  }
}