{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "722695191",
    "entityType": "User",
    "nonce": "0x56eb4b758b3aa00a2432905264d242f819e971a639e291a180143da2665decce",
    "signature": "0x30149b9f56a879ee35befb21f679ba443165ae6bd55ba363f6fceb25adb5067c3a4201b50a6e3f920a86c4c999cb037cb49d5c815ef20fa86bab8950350681981b",
    "signer": "0xEB8F9f09477FF6f9DfEDD92617d068fCB6473F65",
    "userId": "738273726"
  }
}