{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "436570310",
    "entityType": "User",
    "nonce": "0x3d8030cab85b92f1d54f2bc896acbf51b69283473ea19a25febf27828e214fc3",
    "signature": "0x115ddf77b2735047958a8d7da01be5a65dfd533d54f0b40b53a6bdcc3ef1816f384eadff6d0763fceb8d5f81926a7093abdb3499ed01d05c6c19f0c9332fc51a1c",
    "signer": "0x4fdc03E53311BF6b1B8728dd0Ae0630bF74176f1",
    "userId": "162770660"
  }
}