{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "4686",
    "entityType": "User",
    "nonce": "0x1656b23b04c457887357924ae4ec3d17f314c42887a3bc855e787a427279ae12",
    "signature": "0x8f5e043e85cbe7e3568484ecdf0b3e0be19765ec6d415a05aac0c73fa0db582907db0be92e96b02f8b01e30e68af2af9eecaa082ee6388c403c529087fb093e41b",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}