{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "806873848",
    "entityType": "User",
    "nonce": "0xb2be7773e885327165d9d63a6d91952e68d915488c268b9f494918c7bcdfcd89",
    "signature": "0x55963a8ff18adf2f7dabd9c25dceaf2137742128fb24fe1a16811838603962bd3c933dfce0cd1dcc1aa60dcbae0edf08c83ca39cf50cf65d823589b09faa14c01c",
    "signer": "0x5600fB5ddc15960c23E36c4490250861E92e5D9a",
    "userId": "669876218"
  }
}