{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "41804",
    "entityType": "User",
    "nonce": "0xb73f37e3b528f3e63d1ee671afa35bbcbebf227423b9aff30fac1c5f927477ef",
    "signature": "0x450bb99553411b9edeb0923769dfd6656bd09f83377430008648187d22a5efe631a3f5345a4400e4082ae0b244e0bac5134249f7deebd56de68ce3a01db918281c",
    "signer": "0xb3168719A9181aDe0746f0F52D94015614eF5577",
    "userId": "409178654"
  }
}