{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "40553",
    "entityType": "User",
    "nonce": "0x2d15b199474c9d78b7bd5a3e5844827aae5bbd9247d8cefd8b671f7d601ac504",
    "signature": "0x15617ba5a77084aa551355bbc9052fb262a7f39ec589a972f7fcb768106f14cf69f0ed00c1444b7d81265ad8f31444cbc014dbd745ce08cb0bcd4165eefcc06e1c",
    "signer": "0x9765cbE8e26a2c6c4847C1B69ABeB0B5250EC254",
    "userId": "678556080"
  }
}