{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "357771",
    "entityType": "User",
    "nonce": "0xf1741e3674133229caf55dd1523d2523741e08941a28918b57bc6bc6359bd8b4",
    "signature": "0x5c59b2c645e975544fb98774260790586e105d8da85a8e5436f897a6009930571d1eb6b6dd9393866bc12892f86b30ba4754b90287d7d9db268141c47512f1881b",
    "signer": "0x87FC3581f96D45b347BB39E15f25079950C5Cc27",
    "userId": "339826419"
  }
}