{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "863774823",
    "entityType": "User",
    "nonce": "0x7870e09e2d54da8cf5b6fc1d9d45a32bdbccd314751acb11a6f050270ccf445f",
    "signature": "0xa047bf7015c225bff3847db4ba20389f290c1693cca91730a4deecf1108e1c7717399eb93a65404975c465bd850acc4955079ef78f981ddcca6da641df4778cf1c",
    "signer": "0xbF4F1f4df4779768AfE75515b1552a2Bc5b4Dd32",
    "userId": "100976759"
  }
}