{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "393040",
    "entityType": "User",
    "nonce": "0xab4e8a52882c54f3dfd44a3fa55a557dd4803dab1a622b0b978c4f61b1e70c8f",
    "signature": "0x34896460dda7c986b1b5708e0e2254545fa204cbd285b86dc644b9aadd8e5f4b7b931ac39afa9f56ef10fd937ef00e9e1bca427fdf9ca0c81da5d646e084837e1b",
    "signer": "0x375963f281CEdF4D9D180496F80A256D574daBa2",
    "userId": "981824750"
  }
}