{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0x24bbaeac94df1337c7373527d7eddda503feb05b1ac10510e14fb12d51ec82ab",
    "signature": "0x34bb10c25750caac3af5a96a4b84be0293083dde282cb40f8db23487f08b8859571069619850f4185548d57ba6be8cc292473972ed543e0b583ccaa9209ab58f1c",
    "signer": "0x5A20B981a29D6e5E84F8b81B0c5b32304994e650",
    "userId": "340767645"
  }
}