{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "6268770",
    "entityType": "User",
    "nonce": "0xf321a7214c1e0fd95c6182375b602847109d6b97bcb07453db20309e1e6ae1ca",
    "signature": "0xcfbc765eba14b5d54e7b320dec59b0d6aa91472c9e2f59b801dfb55cf3e378a33c1519fcfc77caa6c48ad9b8ea62c7bee5766480345016fbf3d1d6d8703cff471c",
    "signer": "0x262a2A1c96da0dFD6f33595c8D775BefA860d02e",
    "userId": "486490947"
  }
}