{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "190942",
    "entityType": "User",
    "nonce": "0x6b9b6d38200c400ac0f4e41ea4f323f9418c1c187a88619ae0f2717225c763b6",
    "signature": "0x67c2c0c114e7e78de388b5d1d169ee5715508c2199a129f19b7c962fdb7240b7265a9f7f90863163ae4e6b52dbb42d0cf016cf231d6887ed1d26e41c4530df251b",
    "signer": "0x5Af531A9cDF9747df40f57531227d70F1bdD2ed7",
    "userId": "511108744"
  }
}