{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "296452",
    "entityType": "User",
    "nonce": "0x449244829a32a9acaa83f946234ad21016a681e1b727010d05f9d99849ea3a4c",
    "signature": "0x9bcf2813e7c4ea08207f8e2d6d73478f48e4dcd5c3be60ccc8a8bd73a17135645f8dfcb9e19ff14301462e142ba8e3035c5b01d921110440c47aac99a181a01c1b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}