{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "14868",
    "entityType": "User",
    "nonce": "0xc5a3580a3f6b374b748f5fc6dab76e85905e94f806730234f5188cb2a1364ae8",
    "signature": "0x4b56689e31ddf7524cc552e6077e5a8b2b7668aca03d5565dcbc74eb821d6e7e21e571f7027466966c9021cc573074620b29b38f668b880d2c412fde749761b91c",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}