{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "344799",
    "entityType": "User",
    "nonce": "0xd00d72383bdde7a632cff1cd80ffd8a20bdd04afe4e675363b3b1df61b1faeb7",
    "signature": "0x747f3573377b682b9931d1b39a2866f021ab7f818b77b266f4b5ffcec6c90f3845d8d7360cffa4a387c477c797443261c48f7f0a413de6d673151075dc2698001c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}