{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "18192",
    "entityType": "User",
    "nonce": "0xbbc499a87198a49c990c98ae3801e6827ca4197fbf850a8d9659b67a50b6ad12",
    "signature": "0x5fe3bcc59d4a013e36721fc697945401eb1d0c1f5aabb29027d0a128acd51ca0268038f93c78324815f1759fa090acb9baa277643d620e8129d35f955b499e331c",
    "signer": "0x257c9f4A9563d6A4a2bF3be7Da1738e167fcF295",
    "userId": "301719964"
  }
}