{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51561",
    "entityType": "User",
    "nonce": "0xba9dc5236810b014ba6e756871057a97423fb5bcf1572417fedf251184ea7746",
    "signature": "0x5fcf3472a27c52e2609bcfba8a17d63ef8241406fc0cb69448f7a7fe9cf0b02a7af1c222b4ed43ccbfb47ce24e6d1113699c79f3c3a606c9a93edaeaaeebd4fc1c",
    "signer": "0x11cd379D12F9a2c7BAaE2f74F1914A8c50faF2c3",
    "userId": "387949683"
  }
}