{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "665",
    "entityType": "User",
    "nonce": "0xac1d1eaba688eaf47b3d6097922ffe91cb729b9a293b8d3e0835c275dc23f8b0",
    "signature": "0x4f808bef7089e7317d38163b4be0fac21e9bfdcdc5f4b15ef774bae2c0e80ab31699084a42dbc91f842cb946c0b70555b326076c0984b0c9ba55a658a1380e691c",
    "signer": "0x179417150791462a2c68d53EcB8cE3e9E82Dd0A8",
    "userId": "786632152"
  }
}