{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "774150",
    "entityType": "User",
    "nonce": "0x34a3ef201ffd87c2f397b79eb7c9dc1e9e1b4d95b07652ae76bc4dd3c0ccead0",
    "signature": "0x82269d6c92fb5786377ff0e6686dfcf256e1868d42036a69d7838fa2172eb5210c16d2990f275db5ff2bfe0cba9046c37a9f2831bc0768b33b771843da74d45c1b",
    "signer": "0x4230116F60d3989D218B84425D3D1Dd6C85e1393",
    "userId": "86128800"
  }
}