{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "267179822",
    "entityType": "User",
    "nonce": "0x9adb878e17a1d558fe2d73c81b7ea0abe4fc39109be49c837642e55dc8e8f1e2",
    "signature": "0xc38f211d932b374aea32ecf64327dc4958c06f6dd2c0efee752e88ef07e8ab6c553b42166b53f4a16c992a0e32b7461e8c4c26b6403e40f7de24f69a039340e31b",
    "signer": "0x243A439c272133AEEE0073AF4986dE391C430866",
    "userId": "77551267"
  }
}