{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "48573",
    "entityType": "User",
    "nonce": "0xf443792256b924d3d7683950196ea83cf49d1c2ff108a062a8c246498a2c221a",
    "signature": "0x4caf15542138ccc3f94fa7b0ac2d69c1ce94eeec2125972b27df8881272c17fa75ebb1da15f1a5921efe05806e9d0229923aab7346073a031e8f51888737b6c11b",
    "signer": "0x3D8B2928f8C6d3a1605187DacEb37824a527A1cB",
    "userId": "394450"
  }
}