{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "527480232",
    "entityType": "User",
    "nonce": "0x0ff1de09cba3afd4a50aec0a20330806d00dab1591a7f20091ae75ca382b6b8b",
    "signature": "0x7270c85e7fbe647e565d9c0d553d63d11c5318582f0259aaed45c874eb6432e86fec4158906f0e43e58e9402a4e46d8af81f07216a6bf536bf2cc2b44fce0db41b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}