{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "103296",
    "entityType": "User",
    "nonce": "0x3de53475a144d6b1c3b8a2ae8fecb631779f3a5bef598896cd541d1546ad2428",
    "signature": "0xae78b994b039e7a3116d93125daf8db022bc22d076064f8ec5c8292a2badd0f37199c89da4fbf60c04a067cdafa8304e91d9f7679643234636463ef726b8d99a1c",
    "signer": "0x15F044DF87A440bA5eEeC6D18C219f99Fe2A80b3",
    "userId": "909119422"
  }
}