{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "290283513",
    "entityType": "User",
    "nonce": "0x9fb799cd434df6e8deda324015e0bdb3db6468d6b13eae08533ff452d2603ff2",
    "signature": "0x359239f76782dbacb64d15cdb30e3297e5ddb6a828a3ea2c7336592743b3b25c7e379b11bbb5a90a720d4c87e171886b91654f1822e00adf52761abb14bea8371c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}