{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954169504",
    "entityType": "User",
    "nonce": "0x73ad2c8dea4bb0856cbbaaf1e4bffbc56e16e9e85c49d751e9d5b8fe755e1f4d",
    "signature": "0xce68fb00c05e764fb6062bb74fcc6cd6be97e56a297e2e9cd5a3296d118c7fbb2a3d2d09e498d7bdf52695b03918392a435d7474e1e66012534adb334fab91d01b",
    "signer": "0x5452f86EfcB1153FF9C10bdbe4103Ce25434D124",
    "userId": "620307004"
  }
}