{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "557210595",
    "entityType": "User",
    "nonce": "0xa896411aae71f1c7c6f41e152a2003be46e188102a700973c7844fd5a502200f",
    "signature": "0x6c431531724cb346c9fb6eb6091fdf2f657df3920fc19d43239e4cfc06e1ea0b018a35cfe8c2c0f8a135ff505d763c21c00b068a15e35f238a1abe6b45163fd91b",
    "signer": "0xAfE04b3A47505816aD72A3036422AC553C1dFEc3",
    "userId": "515307498"
  }
}