{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "954705651",
    "entityType": "User",
    "nonce": "0x1e75c9e4a23009e2dd8e82ca5bdf39ea511cac8537d41083b9ad84f44077cbb8",
    "signature": "0xde5d8c6f5272bf471ad88fc605c4a89a81e58bd0b921faf28b7cc42806ea17fc5cefefe86139e639c3196845766d3518fc17877847e60079d192ba42c139e9a81b",
    "signer": "0x72C3229e8a009963fcCB987460463895a2989d71",
    "userId": "109371348"
  }
}