{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "346318789",
    "entityType": "User",
    "nonce": "0x54ba66187c3d972ca68ac256356085ec87d356c012be3da336aac77acffd6088",
    "signature": "0xcea17d316a0184513e6544cd6f401f0fe25542db4b1a5e3009d15db723ac8a7f17b23e200add11616aaf4320fbe8fd59afdba396fc9aa8d842abece70be5f91e1c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}