{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "200080308",
    "entityType": "User",
    "nonce": "0x1b70bb6069312556358e8573d0888386664b7af14b3e2937a8fce5a280f39833",
    "signature": "0x23a5c91f297f1fe1bf8f26db30eedff9206de25fe92dbc3d2b9f9adc8cf86dd61cab0d9a37b16f85eb51cc4c2c2f394dfd819248fb8aaa638a7e8bc2ced7efa11c",
    "signer": "0x849b8180f084363b37768C823c174C9786020A66",
    "userId": "817339612"
  }
}