{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954705651",
    "entityType": "User",
    "nonce": "0xdc97641dd2dbbdf822caf3c01e8cc814122f44f21ba8d938237643973511e330",
    "signature": "0xe3293ff4ceeaa1f2cc6eb775b1a1d7969473ffe1c5312a362518714da92b275a0109752ee55beca6640f631b6c2b8746273f0ca121b6c7219634bf66584eb0411c",
    "signer": "0xd708949D0521A856Ca6eB44B4112bAEE59741ADD",
    "userId": "490478463"
  }
}