{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "367647512",
    "entityType": "User",
    "nonce": "0xf4dcec83053f6cc600471cf490eb41e227087795e4eb020173cc45b9e8f712ff",
    "signature": "0xe79ffe8f5c81d7b2744b2bb2e20f228c4fd8fcaea3ec6ef0f491cb2569bb31495f36c524dfb23fe958549abcc1d0e294d49d604eb63d92eb4f5e2521618db31e1c",
    "signer": "0xd8331bd2c1c12F409a0D8f73FA21a7287E0460d6",
    "userId": "449077915"
  }
}