{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "634795661",
    "entityType": "User",
    "nonce": "0x256d5bf444aac8a06073738d8fec33e733e0426d849a24be99a04813e458b12a",
    "signature": "0xffa6e5a027fbd54ae129b26277b41f6b64247ce674287516e906058d13f36a591bc40d7e3888d318cf7331f825fc914e51f14d84045ab619ede21669ac56e9001c",
    "signer": "0x040629E31a68119093b9a0111257C8449c2f8e10",
    "userId": "20"
  }
}