{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x23832e4f353a4c0897ab04e7cb093f809d050beceb8c07490a4e9a2f954164c9",
    "signature": "0xcd57ef1af36cddc2345500397910bad5ad2d323ea33104f8f66c96ea7c8fa9a1196cb06e6faf91c0bc658931775ca1f2bbde88e120f2527a67c03b58764ec7ec1c",
    "signer": "0x163DE4307626a6115feC44b4F7c8965FC80A3b19",
    "userId": "79381713"
  }
}