{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "68610",
    "entityType": "User",
    "nonce": "0xf530014b5ab1522a4bb1c86bc3aa8b2470e4f2171a74cb64a8099ad41a50a735",
    "signature": "0x81abfe86a1946300b1a9e78d88655960537e53b616184d2793a6056728c4e10b6d7ea8e979516b7a1b0e48aa3aca13f8f83c425c9d17e5c1ae156f63b69435d71c",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}