{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870665506",
    "entityType": "User",
    "nonce": "0xa30d3a5517c34fc14ebd24d50bb2109b641392ed3bcf35b1a04d048247a453e1",
    "signature": "0xa6f30b9bc5e076f21f19d0abfd34a6bbbf4985cc47a325d4bea6baf0a4cb2c727b82d54db289e5a8549bce05f7067c286cfa646ee6139b462edc918219be42cd1c",
    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}