{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "332490",
    "entityType": "User",
    "nonce": "0x1da1d9d937abce0125ff028a3cf1885fccbe9d55ad17e35699f004c12e878d0a",
    "signature": "0x46efddf30a1564cd04af7f5b6aa84dbad4ab400fbd6581c44b2f4e904d78363c07a11fc240f42f845da7d9972fd6f79448e8947472c377e7ecad4b558eb0d9b21c",
    "signer": "0x481d41B4b34069e19EDC206C160447ebA0841f6F",
    "userId": "854614078"
  }
}