{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "325624",
    "entityType": "User",
    "nonce": "0x2b787880acb63a688465d362be5a5895270ddc47e31816269492162e483b897a",
    "signature": "0x83a9389a4e149d62f383689c17c93f4295a9fe5b26fbfdade79b126da1f55e6d2ffaf28ffe97c246431b37a3e94ef80a1f5217ae7f6430f0fae2bc27c778b3141b",
    "signer": "0x2298E32DA0e7c080878c6C1eAB02B255510f0Db9",
    "userId": "570472437"
  }
}