{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "831117417",
    "entityType": "User",
    "nonce": "0x9afe6415a87842aac65057108905992e56ffe1af9cc39024f147ed59031127a8",
    "signature": "0x7016c8fb2cdceec5b97a56a1229779a66b157741d49ed14df12b349bc748dd086b6969455e646baf815704c375a003310f9703fae649495a2498a61a0be38e111c",
    "signer": "0x03b70C3825d7b9e568C53C89a738061d855d0dec",
    "userId": "578849678"
  }
}