{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "831117417",
    "entityType": "User",
    "nonce": "0xc8742fc395bb3b90d466113ca23aee8d49c28e08df08b9006f27a723ce59b5a7",
    "signature": "0x648576071f7e57a600a23085defeb7ddc162de6a210bbecd6f455895925e25504577a915d3d3134104ff25ff9fb7f869d4b48a83fe934dddd16604f3dc0c53ff1b",
    "signer": "0x8097f7562D3D2F9cbdBA391c45c0D376E438625d",
    "userId": "51978829"
  }
}