{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "320366",
    "entityType": "User",
    "nonce": "0xcef78e8f0540ec33202629fad23051fb58678e0b4b755b4403700a4e9d59b97f",
    "signature": "0xbfcdcafd9d92d506de3fb27961b63936cadad4ba35bfd399300717aa3214894b2ecffb8eede2246c09a34c555d54b9757e6c3a3e03ca4d01a414dd784ca0935c1c",
    "signer": "0x292eF57C1FAAc86008ab58D5116e0ba424C9189b",
    "userId": "721084704"
  }
}