{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "708291620",
    "entityType": "User",
    "nonce": "0x01ff45c60a7484a9bcaa73c70e921e956a7dd3516f55610235f9eb5285e17b7c",
    "signature": "0x6ce1ab264226a33afaa67c4d93b45914090dd422f86fd361121405ccb206aba0389b5575024fb93fb3526054e1708a0e3eb3741f57d24a1af1182aecead96cf31b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}