{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1418873",
    "entityType": "User",
    "nonce": "0x4eb9ef461fccc5e8fc03601671e8fc4dba3de404f8eaa5bf962a31e94ee45661",
    "signature": "0x62c9f454c256bb8cc7b76984075c3113205a61089fb6aa2dcd5c13bc0eacbbba50ec3c3b06f97c49594a601b22da60ba346dd44490b267c2712847ebc7b2cad41c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}