{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "979614736",
    "entityType": "User",
    "nonce": "0xc4be3c78a53b02a0e0ef93d6a7c20e5bd0ac537641970c5fca16977aa5670ecd",
    "signature": "0x31a0637bc8083e7dfd715b50939c4448b64bdb2baeaec8ae78d3659af0ad949161de3c2b6c8b18a897d0ce78dba3560a10627876a827642204ce7ca3fc7856c61b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}