{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "681864718",
    "entityType": "User",
    "nonce": "0x224f356a84436ed32cdb9c48320d1e8112c6713b60479889f21e133d8586750e",
    "signature": "0x7d61a1bcb82cdac28a67d55cdb7a908f0f0f425ddeb1b13916ca6f925be8a93a6e92b36263b6e4858082f0e1dd3a28459799f39b2061f0864a04ec383248bd321b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}