{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "1511276",
    "entityType": "User",
    "nonce": "0x56205a625c7d8b0e1487eaa7ee5eba7c3d5e203ce710ced56993a0231638c81f",
    "signature": "0xd577d394021a65b12ffa45673cd3e981af35b584774d4f32eaefa292dd465a2361fdcfd733a5352e801ee22ad0a379d79083b23bd56749d962fb0e66bc492c4d1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}