{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "488430169",
    "entityType": "User",
    "nonce": "0xee10627be69c72ee96cda4d4238a799b916751cffb045b824d275355fe1afa09",
    "signature": "0x5ef8549b3954f28c1c1251ae6538537671dd4bc47983d4e24f4a5c7524a6273a0cf4ef15efec816b86836807fbb796abb35befbfb1287c17b48bb8a3fbd8e4521c",
    "signer": "0x20a821B898F6Cb6BB0E5FB2460eD4225B40Bd68D",
    "userId": "198400104"
  }
}