{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "801898123",
    "entityType": "User",
    "nonce": "0xbec0eca7bb5529bbb8d3dbd10eff230a1659a4c3fddce1c64a1ca44dc8a94dde",
    "signature": "0x2431b4df340e4ccb6a85cf9deae3cc6a43966b86f1128c5658a62138904ea0da159019868afa5e4a7bc99a67bf1601b677358428e57b4c3d48869597a9b9d7641c",
    "signer": "0x295d42c1Ec705E3D11f260aD4B7D830bEe2f15E9",
    "userId": "21998322"
  }
}