{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "870010890",
    "entityType": "User",
    "nonce": "0xd2b6ed0b63001f215ca7937f43e9bf3cb3f8bed86b1986fd35bef5b8395f0a6b",
    "signature": "0xde2eb6be876622fc04710257aa521000ef922f9ddf48457f2e9e05ad1676774d3b54895d0135e7c198430a5f055cc9d157c957bd01f9bb9bebcdb7e2affe1ef91c",
    "signer": "0x96818aB6687d2E9bA070EB1d6843ef7BfEF5cDa4",
    "userId": "806873848"
  }
}