{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "530760555",
    "entityType": "User",
    "nonce": "0x1267b85719a3e3813fad629d1ddc31c39b5bafb50676738a001a939b1f1756b3",
    "signature": "0xf12459e00018acfa3e391c8cd1a83cce886b1a33c3a977344ac2a26069465479261879a2938e60eaee65cb714732aecb6a514b43863b457fcc6ac18ccbcf96841b",
    "signer": "0x408CbFDbc09C9aFB99Da5f010D04f50A190b83B6",
    "userId": "675830993"
  }
}