{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "965967248",
    "entityType": "User",
    "nonce": "0xa1f9650248b91f657fa3a8897d45b241867350024e01eb655b4cf0c016e73257",
    "signature": "0xb9f1e4ca09a372d794296a1cd2b58bea8b8de2e625287937813dc84f338e1919397c52d387b9055919612461d92de6d4f0b17743a85b63bc804657786d2288a01c",
    "signer": "0x9149C438b2FBf68d0e846EEfE2E6B19be686Af42",
    "userId": "843"
  }
}