{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xf6991fe793071bf93ce34744f9f9528cc88054de8103dbd9ab196b6a305b56d9",
    "signature": "0x95149c18d24282ea2bb632fc5327d8b58aeead49c67c96e2cf0c46af340e7ae74c25be8d7bce513622b96dd2c095375067ccde0e0acb52aedf3cf4b92f38cef71c",
    "signer": "0x7FD245f490eA59F66841bD0442db599162ceFa19",
    "userId": "32385223"
  }
}