{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "396",
    "entityType": "User",
    "nonce": "0xa03de2763e28e1801e793ce285460151ae6ec607ad8f568da558b4b25a3472ba",
    "signature": "0xb55070349061262afc96aec8e3f83085faff7df66e469034550576cb59acd1487da348d2198c651f288a85faa41c6054b30398845e8eb75cece267af09f52ea61c",
    "signer": "0x27ae790B7aAcA244c689df0FE958D5431f1e4861",
    "userId": "669640444"
  }
}