{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "54432",
    "entityType": "User",
    "nonce": "0xb9cb273b52fab76f1d39c007093158284d74c408d7fa1487b7531bac23bc1d3f",
    "signature": "0x8dfe9cc37ad1f753c8f2f70fe872b248f902f16e9d3725fc697cf83fe325b4516eab66161f1aa076be4b18ab75749c3ce7f1220ea64646c541a09c18ae4dd7cd1c",
    "signer": "0x294061181d09E3fA06dD3C5cE735E77E637Bf444",
    "userId": "402461880"
  }
}