{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "405117",
    "entityType": "User",
    "nonce": "0xba616494c6b75f74ed19346a5be53a1fa3d6402f5062d67883805e61e83c604a",
    "signature": "0x6e65a2091baf95eff9d7d74de08cf383c2a4144b276d92cd947e89b16f4890fa097af86e94d2688edc1ef4bca8b5c2a99fc8dd646451a02ad7f6c28c8d487a921b",
    "signer": "0x7c5233DE7A8aD918D090BD36cC8C0e6273814D60",
    "userId": "559710456"
  }
}