{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "148725",
    "entityType": "User",
    "nonce": "0x2e558c71855563c7ff1114f1a67f2c1db16706b3a470db357c9bbbfb9ed2119a",
    "signature": "0xbd66eb16eee8f6486d1f9177a9b86acc22ea7be846fdace1928d8242ee04b48a00755df1431a9d28b4410b0267ceea738632ad777c12b79e93cf9cfaf0f9e32e1c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}