{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "735980234",
    "entityType": "User",
    "nonce": "0x4fc757b74e18c6fb2561e85444f2dbdb52a628d58c1376d66d3bdc52cc9925a5",
    "signature": "0xae7da12e46fb19ff723a9e11d9a52978e082e8f95e2fb62827a4f634485b0f9b6c14d1cefc1a966bc46eda2044e81ce2e4e27db96f33e1d5a478cbd4f4474f8a1b",
    "signer": "0xb7cfC3e8ADEA33d90F4f4B34f672a1C391955768",
    "userId": "120328"
  }
}