{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "840653346",
    "entityType": "User",
    "nonce": "0xc479929f4df9970f05988d28590049e2a8e4f676be7af26676591c0ce6fd945c",
    "signature": "0x96703bedd24c6a350a61aea6bf7cdb3cab219bada690fdabe1ab06ada5370ee25b292f95c8bf79f552686d97a41a63e9d7d939b9af9e6d7861c99439fc8f53421c",
    "signer": "0x94e0dDC50579175818AaCFBC9aba8B065fEf2a55",
    "userId": "460147282"
  }
}