{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "55585",
    "entityType": "User",
    "nonce": "0x3d2c5ef0eb89dc3fadee05de2a3892ed74088a670e808cb03384832adf5ad90b",
    "signature": "0xc392dce5455c9aef8174d942df8dd37b913f8ba4b09b5f066521db56e26436c668f56ec24cbf57c0f5afc1cf3dfc579df29aaf7776b0e01b42d3792cb93968221b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}