{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "906235957",
    "entityType": "User",
    "nonce": "0xb5edb4c89a74fb967e43894b809e943d3a17a00445ab0316d3536c3ff20c4ca5",
    "signature": "0xee8030d8102ef075df6d2fe860d1c68d5c206f3517476c7487b71c2aacab66e2492b810e097f2d1d3331a7b40e134c5856468bcb64d2b7893588d7fa2691fd831b",
    "signer": "0xD24271e3B8CCFB603860EA392E94eD5AE2538703",
    "userId": "456716469"
  }
}