{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "380579",
    "entityType": "User",
    "nonce": "0x7e0b4c3c857b4eb2a929fcab44933508ea456a6781a0b3ac6de56af0060c1d49",
    "signature": "0xaf48dd710b9afbe6c81d88a3290450144aa0a11ea6ffeeab55ba4f2718fc77d41e60681620d66818045fc318cda795e5eb0782afa90376608af5e7df787e65c71b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}