{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "144449",
    "entityType": "User",
    "nonce": "0x09ca452640a436a678abe17558d2ed2b0c09736a79e40b374c0467fd9c46b32e",
    "signature": "0x0b5e51d1ec7a4006c3c31f9302226e6887c3a557501c4492aa2799ad3202b0b66eaeddcd0858c1366605fbf5a3793f7a30879683127c85f3c42103465591dd4a1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}