{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "12268",
    "entityType": "User",
    "nonce": "0x1bd3a98e9f6abb263a4a16ea32bd62178be07974c76a4618aa8f98c7b5b452f4",
    "signature": "0xc459e8918d3031a41a1c8e01710bf0c83846a25462fdd3b92fb161a1025b34e7340820aa5ac539c4081f005a6233ff3054671bbd327b621430fc0a96339f77721b",
    "signer": "0x647204eDe2dcB8e40793BB48e4bb4Be7ab706de5",
    "userId": "580720856"
  }
}