{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "51",
    "entityType": "User",
    "nonce": "0xb8db36dcfb619e3a043922a72ac13789f246104caeba364c75cadbee9edc267a",
    "signature": "0x654db9986c686dfec14d1baec38cb3dac0620b1dc3b12ab1ef20b15914439e7d0b36a7ccef2404a51608d3461bffcc409075873a552a904759c1c8b631a67dfd1c",
    "signer": "0x2d605901F4DDd5De51e526E8E2ADF7aC0a19c248",
    "userId": "5352096"
  }
}