{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "391938",
    "entityType": "User",
    "nonce": "0xf058f3317b9231815bcd366c7e3e17984017674f99f7419ffcf80d90e5f2f933",
    "signature": "0x798cac188c7acc50198973785d23725e228b29f036134c5b980234a9391144be138a5b137f036b4aed3c7fc6b92e2ae2c2ac518f9a7c5cdd04365f7c38795c1d1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}