{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x192916fb1fd652d23c7e38f19f3342035297187c36381558f33996265242d6c8",
    "signature": "0xac3415de1b6d69b86f53376b30fd562ee1226c4bcfe1a75549ac7e3a2eb7bf5c4cbc5f928dad5a4784e06e156171fd9c1713b6bb24dc39c042dd153d562fd43a1c",
    "signer": "0xEDCDB601bD6D06D994739A6f926b9A966563178E",
    "userId": "724632273"
  }
}