{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "273088956",
    "entityType": "User",
    "nonce": "0x6521ff2e2e3447fa95ab27cf60db2c1552637b43b6d8b0c5505f9a615c9d5750",
    "signature": "0x6384374a02cb31639f05cd2476c359b2a60b527ffb67ac2ad8e36090dee35680024329b80684f228990334f427e98d6dad889205d8366fee1fae42212a9a149a1b",
    "signer": "0x45f053EE6d99e48800FdabfC3da995B364e9dA54",
    "userId": "628434403"
  }
}