{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1719649",
    "entityType": "User",
    "nonce": "0x801031b61f12293e41094b614b3d6c1ea982f25de5de6c7525904fc8362f438a",
    "signature": "0xe29df64e1b95e7e759251d841c947b34189b6bb8d1c17a8de3a82ba1b1ca7dd85bc3ec5b2eabcd53236ecd5d9d29dd547987b6f522be008b04bb75d9881139241b",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}