{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "428192787",
    "entityType": "User",
    "nonce": "0xc60477c9d0c1a2cda9036bbcc21cb92a216ab8c817830cd9702f75b363bfe7bf",
    "signature": "0x972950fb21c44f12d60e9a87a6808d6e14c60e53a8fb8c622718980f17d65b8e583f9167e0fb5fbebd42a74f84533751f52d411d9f13e7f994cac2cf143295921c",
    "signer": "0xbe916820AF010608151C80f3A74F7c83218094B2",
    "userId": "881446128"
  }
}