{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x82106cbbcd9e6f0cb80df417665ab6e4a5f6191c3fd63ba6f92a06b2a464419c",
    "signature": "0x532c15e7de807470ae819a7eeabbcc270a90878ee1c9ac13d2751f3a043e99f223509bdfc5368383d8d07f4b645395d2c78516a1820a15b5e81f9f78ab4899ad1c",
    "signer": "0x7B499405130cFEFBBaec9980A9E37BBE42E8589D",
    "userId": "633494619"
  }
}